Das Keyboard 4 Professional vs Logitech ERGO K860

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.

Manufacturer specification · SKU 920-010107 is Logitech's Graphite English UK (QWERTY) configuration, the only colour offered. Keys carry dual Windows/Mac legends. The tall ISO Enter key, £ on 3 and # key are visible in the official UK image.

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

Manufacturer specification · Single-piece curved split keyframe (the halves do not separate); the pillowed wrist rest is permanently integrated per Logitech.

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.

Manufacturer specification · The UK product page and the support article both label these Width 456 mm, Height 233 mm and Depth 48 mm; the 233 mm front-to-back figure includes the integrated wrist rest.

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.

Manufacturer specification · Width across the key rows.

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.

Manufacturer specification · Keyboard with integrated wrist rest; whether batteries are included in the figure is not stated.

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

Manufacturer specification · Current UK product page. The support article's 'at release' list also names iOS 9 or later and Android 6 or later with older Windows/macOS minimums. Basic functions only without software on systems other than Windows and macOS; Logi Options+ customisation is Windows/macOS only.

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.

Manufacturer specification · Logitech's product-page data lists the keyboard's 'Scissor plate' as a low-carbon aluminium part and markets 'perfect stroke keys'; the support specification gives 60 gf actuation and 1.8 mm total travel but labels Keyboard Type only as a full-size ergonomic split keyboard. No alternative switch options.

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

Manufacturer specification · Uses a Unifying receiver (included). 10 m wireless range per Logitech, which may vary with operating environment and computer setup. Battery powered; no charging port.