Das Keyboard 4 Professional vs Logitech G915 X

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 ProfessionalUS English ANSI (104 keys)

Logitech G915 XEnglish US QWERTY (ANSI)

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard lists a 104-key US layout and 105-key UK, NO and DE layouts. The official image shows the ANSI wide Enter with backslash above and @ on 2.

Logitech G915 X

Manufacturer specification · US key legends; check the listing for your region's layout.

Check the exact configuration and source conditions for your use.

Keyboard size

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 ProfessionalFull size with number pad and dedicated media controls

Logitech G915 XFull-size with number pad

Sources

Das Keyboard 4 Professional

Manufacturer specification · 104-key full layout per Das Keyboard; media keys, sleep button and a large volume knob sit above the number pad.

Logitech G915 X

Manufacturer specification · The exact original also has nine dedicated physical G-keys, retained separately in Dedicated G-keys. Macro layers, media controls and top-plate finish remain source-specific facts and do not change the full-size layout class.

Check the exact configuration and source conditions for your use.

Exact switch option

Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Das Keyboard shop product data for the 4 Professional (variant SKUs and barcodes)

Das Keyboard 4 ProfessionalCherry MX2A Blue (clicky), gold contacts

Logitech G915 XLow-profile GL tactile mechanical switches

Sources

Das Keyboard 4 Professional

Manufacturer specification · SKU DASK4MKPROCLI is the 'Clicky - Cherry MX2A Blue' option; the product page also refers to it generically as Cherry MX Blue. Das Keyboard rates its switches up to 50 million keystrokes. Das Keyboard does not state whether the switches are hot-swappable, so no hot-swap claim is made.

Logitech G915 X

Manufacturer specification

Check the exact configuration and source conditions for your use.

Connections

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 ProfessionalWired USB (6.5 ft cable, single USB Type-A connector); two-port USB 3.0 hub

Logitech G915 XWired USB

Sources

Das Keyboard 4 Professional

Manufacturer specification · Requires one USB 1.1, 2.0 or 3.0 port; no driver required. No wireless mode.

Logitech G915 X

Manufacturer specification · Original manufacturer inventory: USB wired, detachable USB-A to USB-C data cable. Wired model with a detachable USB-A to USB-C cable; the wireless G915 X LIGHTSPEED is a separate model. This records shared wired USB operation. Exact cable, connector, protocol and detachable-cable facts keep their own source scope; unlisted counterpart details remain unknown and cannot establish a connection-availability difference.

Check the exact configuration and source conditions for your use.

Keyboard span across the desk

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 Professional457.2 mm

Logitech G915 X475 mm

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard publishes 'Dimensions: 18 x 6.8 x .80 inches' without axis labels; the first figure is read as the width across the keys, as in the dimensions field. Converted at 25.4 mm per inch.

Logitech G915 X

Manufacturer specification · Width across the key rows (Logitech labels this Depth).

A size or weight trade-off; it does not establish the better product.

Keycap legends

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 ProfessionalLaser-etched key inscriptions; standard Cherry MX stem

Logitech G915 XDouble-shot PBT

Sources

Das Keyboard 4 Professional

Manufacturer specification

Logitech G915 X

Manufacturer specification

Check the exact configuration and source conditions for your use.

Show 5 more verified differences

Media controls

Das Keyboard 4 Professional — product page with technical specifications

Das Keyboard 4 ProfessionalDedicated media keys, oversized volume knob and instant sleep button

Logitech G915 XDedicated media controls

Sources

Das Keyboard 4 Professional

Manufacturer specification

Logitech G915 X

Manufacturer specification · Top-right controls; playback behaviour depends on the application. Original published inventory: Volume roller; previous, play/pause, next and mute buttons. This common field records dedicated media-control availability only. Exact visible button labels, roller/buttons, lighting/Game Mode/profile controls and application dependence retain their own conditions; an omitted playback function or roller material is not a peer absence.

Logitech G915 X wired — setup guide and control diagrams

Check the exact configuration and source conditions for your use.

Dimensions

Das Keyboard 4 Professional18 × 6.8 × 0.80 in (across keys × front-to-back × height)

Logitech G915 X475 × 150 × 22.6 mm (across keys × front-to-back × height)

Sources

Das Keyboard 4 Professional

Manufacturer specification · As published by Das Keyboard in inches without axis labels, read as width × depth × height; elevated height with the footbar is 1.2 in. No metric figures are published; the weight (2.9 lb) and span across the desk are recorded separately with their conversions.

Das Keyboard 4 Professional — product page with technical specifications

Logitech G915 X

Manufacturer specification · Logitech labels the 475 mm side Depth and the 150 mm side Width; shown here as across the keys × front to back × height. Feature text rounds the height to 23 mm.

Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications

A size or weight trade-off; it does not establish the better product.

Cable length

Das Keyboard 4 Professional1.98 m

Logitech G915 X1.8 m

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard states an 'Extra long 6.5 ft USB cable with single USB type-A connector'; converted at 0.3048 m per ft (1.9812 m) and rounded to 1.98 m. The shop page describes an 'Extra-long braided cable'.

Logitech G915 X

Manufacturer specification

Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications

Check the exact configuration and source conditions for your use.

Top-case material

Das Keyboard 4 ProfessionalBlack anodised aluminium top panel

Logitech G915 XSand-blasted aluminium alloy

Sources

Das Keyboard 4 Professional

Manufacturer specification · Top panel only; Das Keyboard does not state the material of the bottom enclosure.

Logitech G915 X

Manufacturer specification · Top plate, not the whole case.

Das Keyboard 4 Professional — product page with technical specifications

Check the exact configuration and source conditions for your use.

Manufacturer-stated weight

Das Keyboard 4 Professional1315 g

Logitech G915 X1040 g

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard states 'Weight: 2.9 lbs'; converted at 453.59237 g per lb (1315.4 g) and rounded to the nearest gram, although the published figure has only two significant figures. Das Keyboard does not say whether the cable is included.

Logitech G915 X

Manufacturer specification · Logitech does not say whether the cable is included.

Das Keyboard 4 Professional — product page with technical specifications

A size or weight trade-off; it does not establish the better product.

Configuration & compatibility details (1)

Supported operating systems

Das Keyboard 4 ProfessionalWindows and Linux PCs

Logitech G915 XWindows 10 or later; macOS 12 or later; USB port

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard's system requirements for this PC model; a separate '4 Professional for Mac' model exists.

Logitech G915 X

Manufacturer specification · G HUB is optional and needs internet access to download.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Missing or non-comparable evidence (20)

Configuration software

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XLogitech G HUB

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · FN+F1 switches between the default and customised layouts. Original published inventory: G HUB with KEYCONTROL; up to 15 functions per key. This common application name does not equate source-specific KEYCONTROL layers, per-key maxima, selected-key programming, rapid trigger, analog actions or Game Mode behaviour. Those exact positives and unresolved counterpart scopes remain separately represented.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dedicated G-keys

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X9 keys

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · G1–G5 down the left side; G6–G9 across the top.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Onboard profile capacity

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X3 profiles

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · Set up in G HUB and selected with FN+F2/F3/F4 in onboard mode.

Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

USB pass-through

Das Keyboard 4 ProfessionalTwo-port USB 3.0 SuperSpeed hub (up to 5 Gb/s)

Logitech G915 XNot verified

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard's product information lists a 'Two-port USB 3.0 SuperSpeed hub - Up to 5Gb/s'; the shop's key features list a 'Two-port USB 3.0 hub for quick peripheral access'. The keyboard itself connects with a single USB Type-A connector.

Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications

Logitech G915 X

Logitech does not list a separate USB accessory port for the wired G915 X; the setup guide's pass-through label points to the cable connection. · Manufacturer specification

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Key rollover

Das Keyboard 4 ProfessionalFull NKRO over USB (toggled with Shift + Mute)

Logitech G915 XNot verified

Sources

Das Keyboard 4 Professional

Manufacturer specification

Das Keyboard 4 Professional — product page with technical specifications

Logitech G915 X

Logitech does not list this for the G915 X. · Manufacturer specification

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Hot-swappable switches

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XNot verified

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Logitech does not list this for the G915 X. · Manufacturer specification

Das Keyboard 4 Professional — product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Backlighting

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XLIGHTSYNC RGB

Sources

Das Keyboard 4 Professional

Das Keyboard's specification list for the 4 Professional does not mention key backlighting either way, so no value is recorded. · Manufacturer specification

Logitech G915 X

Manufacturer specification · Onboard effects and brightness keys; two custom effects can be stored through G HUB.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Game mode

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XDisables Windows and Menu keys

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification

Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Height adjustment

Das Keyboard 4 ProfessionalMagnetic footbar raises the keyboard (elevated height 1.2 in); the footbar doubles as a ruler with a magnifying lens

Logitech G915 XNot verified

Sources

Das Keyboard 4 Professional

Manufacturer specification · Das Keyboard publishes the elevated height in inches only; it does not publish a tilt angle.

Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications

Logitech G915 X

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Switch actuation distance

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X1.3 mm

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Switch actuation force

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X45 g

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · Tactile option; the linear option is listed at 43 g.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Claimed functions per key

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X15 functions

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · Manufacturer upper bound: up to 15 functions per key using KEYCONTROL/G HUB. This is an assignment-function maximum, not 15 physical keys or simultaneous actions.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Original package contents

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XKeyboard, USB-A to USB-C power/data cable and documentation

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · Original manufacturer package contents.

Das Keyboard 4 Professional — product page with technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated switch durability

Das Keyboard 4 ProfessionalUp to 50 million keystrokes

Logitech G915 XNot verified

Sources

Das Keyboard 4 Professional

Manufacturer specification

Logitech G915 X

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Programmable key support

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XYes

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · The exact source positively establishes programmable keys or assignments. This does not establish every key, a dedicated physical G-key count, a maximum function count or platform-independent operation. G HUB with KEYCONTROL; up to 15 functions per key. FN+F1 switches between the default and customised layouts.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

KEYCONTROL support

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XYes

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · The exact own-model source explicitly names KEYCONTROL. Its count and layered/analog scopes remain model-specific.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Media roller present

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XYes

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · The own-model source/original positively shows a roller. Function, material and programmability remain independently conditioned; no absent peer roller is inferred.

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dedicated playback/track controls

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XYes

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · The exact source/original establishes dedicated playback and track controls. G710+, G213 and Alloy Core originals additionally show a stop-labelled key; this does not establish an unlisted peer absence. Volume roller; previous, play/pause, next and mute buttons

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Switch total travel

Das Keyboard 4 ProfessionalNot verified

Logitech G915 X3.2 mm

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification

Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Volume control mechanism

Das Keyboard 4 ProfessionalNot verified

Logitech G915 XRoller

Sources

Das Keyboard 4 Professional

No source recorded for this side.

Logitech G915 X

Manufacturer specification · Exact own-model volume control uses roller. This preserves a real hardware distinction without inferring feel, reach, material or measured performance.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

0 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Das Keyboard 4 Professional

What it brings

Dedicated media keys, an oversized volume knob and a sleep button are built in, and the two-port USB 3.0 hub adds pass-through ports at the desk.
Manufacturer source
It supports full n-key rollover over USB and needs no driver; keycaps use the standard Cherry MX stem, so replacement sets fit.
Manufacturer source

What to check

Das Keyboard describes the Blue switch as the most clicky in its line, which may not suit shared offices; the Soft Tactile Brown SKU is its quieter alternative.
Manufacturer source Manufacturer source
It is wired only (6.5 ft USB cable), and no key backlighting is listed in its specifications; Das Keyboard's system requirements name Windows and Linux PCs, with Mac users directed to a separate model.
Manufacturer source

Logitech G915 X

What it brings

Low-profile GL tactile switches actuate at 1.3 mm with 3.2 mm total travel, and KEYCONTROL in G HUB assigns up to 15 functions per key, with three profiles stored on the keyboard.
Manufacturer source Manufacturer source
A volume roller and dedicated previous, play/pause, next and mute buttons sit beside a sand-blasted aluminium top plate, and the USB-C cable is detachable.
Manufacturer source Manufacturer source

What to check

This is the wired version with no wireless connection, and at 475 mm wide and 1.04 kg it needs full-size desk space.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

32 of 32 specifications Sources in each row

Source-backed specifications for Das Keyboard 4 Professional and Logitech G915 X
Specification	Das Keyboard 4 Professional	Logitech G915 X

Regional layoutDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard lists a 104-key US layout and 105-key UK, NO and DE layouts. The official image shows the ANSI wide Enter with backslash above and @ on 2. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · US key legends; check the listing for your region's layout. Logitech G915 X — exact model specifications	US English ANSI (104 keys)	English US QWERTY (ANSI)
Keyboard sizeDifferent Sources Das Keyboard 4 Professional Manufacturer specification · 104-key full layout per Das Keyboard; media keys, sleep button and a large volume knob sit above the number pad. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · The exact original also has nine dedicated physical G-keys, retained separately in Dedicated G-keys. Macro layers, media controls and top-plate finish remain source-specific facts and do not change the full-size layout class. Logitech G915 X — exact model specifications	Full size with number pad and dedicated media controls	Full-size with number pad
DimensionsDifferent Sources Das Keyboard 4 Professional Manufacturer specification · As published by Das Keyboard in inches without axis labels, read as width × depth × height; elevated height with the footbar is 1.2 in. No metric figures are published; the weight (2.9 lb) and span across the desk are recorded separately with their conversions. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Logitech labels the 475 mm side Depth and the 150 mm side Width; shown here as across the keys × front to back × height. Feature text rounds the height to 23 mm. Logitech G915 X — exact model specifications	18 × 6.8 × 0.80 in (across keys × front-to-back × height)	475 × 150 × 22.6 mm (across keys × front-to-back × height)
Keyboard span across the deskDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard publishes 'Dimensions: 18 x 6.8 x .80 inches' without axis labels; the first figure is read as the width across the keys, as in the dimensions field. Converted at 25.4 mm per inch. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Width across the key rows (Logitech labels this Depth). Logitech G915 X — exact model specifications	457.2 mm	475 mm
Manufacturer-stated weightDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard states 'Weight: 2.9 lbs'; converted at 453.59237 g per lb (1315.4 g) and rounded to the nearest gram, although the published figure has only two significant figures. Das Keyboard does not say whether the cable is included. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Logitech does not say whether the cable is included. Logitech G915 X — exact model specifications	1315 g	1040 g
Supported operating systemsDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard's system requirements for this PC model; a separate '4 Professional for Mac' model exists. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · G HUB is optional and needs internet access to download. Logitech G915 X — exact model specifications	Windows and Linux PCs	Windows 10 or later; macOS 12 or later; USB port
Top-case materialDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Top panel only; Das Keyboard does not state the material of the bottom enclosure. Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Top plate, not the whole case. Logitech G915 X — exact model specifications	Black anodised aluminium top panel	Sand-blasted aluminium alloy
Height adjustment Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard publishes the elevated height in inches only; it does not publish a tilt angle. Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X No source recorded.	Magnetic footbar raises the keyboard (elevated height 1.2 in); the footbar doubles as a ruler with a magnifying lens	Not provided

Exact switch optionDifferent Sources Das Keyboard 4 Professional Manufacturer specification · SKU DASK4MKPROCLI is the 'Clicky - Cherry MX2A Blue' option; the product page also refers to it generically as Cherry MX Blue. Das Keyboard rates its switches up to 50 million keystrokes. Das Keyboard does not state whether the switches are hot-swappable, so no hot-swap claim is made. Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Das Keyboard shop product data for the 4 Professional (variant SKUs and barcodes) Logitech G915 X Manufacturer specification Logitech G915 X — exact model specifications	Cherry MX2A Blue (clicky), gold contacts	Low-profile GL tactile mechanical switches
Key rollover Sources Das Keyboard 4 Professional Manufacturer specification Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Logitech does not list this for the G915 X. · Manufacturer specification Logitech G915 X — exact model specifications	Full NKRO over USB (toggled with Shift + Mute)	Not provided
Keycap legendsDifferent Sources Das Keyboard 4 Professional Manufacturer specification Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification Logitech G915 X — exact model specifications	Laser-etched key inscriptions; standard Cherry MX stem	Double-shot PBT
Rated switch durability Sources Das Keyboard 4 Professional Manufacturer specification Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X No source recorded.	Up to 50 million keystrokes	Not provided
Switch actuation distance Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification Logitech G915 X — exact model specifications	Not provided	1.3 mm
Switch total travel Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification Logitech G915 X — exact model specifications	Not provided	3.2 mm
Switch actuation force Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · Tactile option; the linear option is listed at 43 g. Logitech G915 X — exact model specifications	Not provided	45 g

ConnectionsDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Requires one USB 1.1, 2.0 or 3.0 port; no driver required. No wireless mode. Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Original manufacturer inventory: USB wired, detachable USB-A to USB-C data cable. Wired model with a detachable USB-A to USB-C cable; the wireless G915 X LIGHTSPEED is a separate model. This records shared wired USB operation. Exact cable, connector, protocol and detachable-cable facts keep their own source scope; unlisted counterpart details remain unknown and cannot establish a connection-availability difference. Logitech G915 X — exact model specifications	Wired USB (6.5 ft cable, single USB Type-A connector); two-port USB 3.0 hub	Wired USB
Cable lengthDifferent Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard states an 'Extra long 6.5 ft USB cable with single USB type-A connector'; converted at 0.3048 m per ft (1.9812 m) and rounded to 1.98 m. The shop page describes an 'Extra-long braided cable'. Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification Logitech G915 X — exact model specifications	1.98 m	1.8 m
USB pass-through Sources Das Keyboard 4 Professional Manufacturer specification · Das Keyboard's product information lists a 'Two-port USB 3.0 SuperSpeed hub - Up to 5Gb/s'; the shop's key features list a 'Two-port USB 3.0 hub for quick peripheral access'. The keyboard itself connects with a single USB Type-A connector. Das Keyboard 4 Professional — official Das Keyboard shop page (switch options and SKUs)Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Logitech does not list a separate USB accessory port for the wired G915 X; the setup guide's pass-through label points to the cable connection. · Manufacturer specification Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Two-port USB 3.0 SuperSpeed hub (up to 5 Gb/s)	Not provided

Backlighting Sources Das Keyboard 4 Professional Das Keyboard's specification list for the 4 Professional does not mention key backlighting either way, so no value is recorded. · Manufacturer specification Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Onboard effects and brightness keys; two custom effects can be stored through G HUB. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not listed by the manufacturer	LIGHTSYNC RGB
Media controlsDifferent Sources Das Keyboard 4 Professional Manufacturer specification Das Keyboard 4 Professional — product page with technical specifications Logitech G915 X Manufacturer specification · Top-right controls; playback behaviour depends on the application. Original published inventory: Volume roller; previous, play/pause, next and mute buttons. This common field records dedicated media-control availability only. Exact visible button labels, roller/buttons, lighting/Game Mode/profile controls and application dependence retain their own conditions; an omitted playback function or roller material is not a peer absence. Logitech G915 X wired — setup guide and control diagrams	Dedicated media keys, oversized volume knob and instant sleep button	Dedicated media controls
Configuration software Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · FN+F1 switches between the default and customised layouts. Original published inventory: G HUB with KEYCONTROL; up to 15 functions per key. This common application name does not equate source-specific KEYCONTROL layers, per-key maxima, selected-key programming, rapid trigger, analog actions or Game Mode behaviour. Those exact positives and unresolved counterpart scopes remain separately represented. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Logitech G HUB
Dedicated G-keys Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · G1–G5 down the left side; G6–G9 across the top. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	9 keys
Onboard profile capacity Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · Set up in G HUB and selected with FN+F2/F3/F4 in onboard mode. Logitech G915 X wired — setup guide and control diagrams	Not provided	3 profiles
Game mode Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification Logitech G915 X wired — setup guide and control diagrams	Not provided	Disables Windows and Menu keys
Programmable key support Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · The exact source positively establishes programmable keys or assignments. This does not establish every key, a dedicated physical G-key count, a maximum function count or platform-independent operation. G HUB with KEYCONTROL; up to 15 functions per key. FN+F1 switches between the default and customised layouts. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Yes
KEYCONTROL support Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · The exact own-model source explicitly names KEYCONTROL. Its count and layered/analog scopes remain model-specific. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Yes
Claimed functions per key Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · Manufacturer upper bound: up to 15 functions per key using KEYCONTROL/G HUB. This is an assignment-function maximum, not 15 physical keys or simultaneous actions. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	15 functions
Dedicated playback/track controls Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · The exact source/original establishes dedicated playback and track controls. G710+, G213 and Alloy Core originals additionally show a stop-labelled key; this does not establish an unlisted peer absence. Volume roller; previous, play/pause, next and mute buttons Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Yes
Volume control mechanism Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · Exact own-model volume control uses roller. This preserves a real hardware distinction without inferring feel, reach, material or measured performance. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Roller
Media roller present Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · The own-model source/original positively shows a roller. Function, material and programmability remain independently conditioned; no absent peer roller is inferred. Logitech G915 X — exact model specifications Logitech G915 X wired — setup guide and control diagrams	Not provided	Yes

Original package contents Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Manufacturer specification · Original manufacturer package contents. Logitech G915 X — exact model specifications	Not provided	Keyboard, USB-A to USB-C power/data cable and documentation

Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Hot-swappable switches Sources Das Keyboard 4 Professional No source recorded. Logitech G915 X Logitech does not list this for the G915 X. · Manufacturer specification Logitech G915 X — exact model specifications	Not provided	Not provided

First product manufacturer source Second product manufacturer source

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Logitech G915 X LIGHTSPEED

Keyboard width: 475 mm
Cable length: 1.8 m
Actuation distance: 1.3 mm

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Keyboard width: 368 mm
Cable length: 1.8 m
Actuation distance: 1.3 mm

Logitech G PRO X TKL RAPID black tenkeyless keyboard with US ANSI QWERTY layout, official top view

Logitech PRO X TKL RAPID

Keyboard width: 357 mm
Cable length: 1.8 m
Regional layout: English US QWERTY (ANSI)

Logitech G710+

Keyboard width: 508.2 mm
Cable length: 2 m
Regional layout: English US QWERTY (ANSI)