Global manufacturer specification · PRIME B660M-A D4-CSM
PRIME B660M-A D4-CSM motherboard, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
Specifications checked 17 Oct 2026.
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Manufacturer specifications8 verified differences, led by Memory type, slots and limit, storage interfaces and restrictions and network interfaces and requirements. Compared in full below. Not a rating.
UK manufacturer specification · TUF GAMING B660M-E D4
TUF GAMING B660M-E D4 motherboard, identified in the ASUS UK catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
Specifications checked 17 Oct 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
Manufacturer specification
Manufacturer specification
Plan the complete platform. Check the exact CPU-support list, required BIOS and memory validation before buying. PCIe generations and lane allocations can change with the processor. A socket match or slot count is not a guarantee that every component works together at its highest advertised setting.
8 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.
ASUS PRIME B660M-A D4-CSM — official Global technical specificationsManufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor.
ASUS TUF GAMING B660M-E D4 — official UK technical specificationsThese descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.
4 shared fields have the same recorded value.
| Specification | ASUS PRIME B660M-A D4-CSM | ASUS TUF GAMING B660M-E D4 |
|---|---|---|
CPU socket SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | LGA1700 | LGA1700 |
Chipset SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Intel® B660 Chipset | Intel® B660 Chipset |
Form factor and dimensions SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) | mATX Form Factor 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm ) |
CPU support and BIOS requirementsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor. ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification · Exact CPU support and BIOS revision depend on the processor and the current ASUS CPU support list; the family statement is not a guarantee for every processor. ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Intel® Socket LGA1700 for Intel® Core™ 14th & 13th Gen Processors, Intel® Core™ 12th Gen, Pentium® Gold and Celeron® Processors Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to www.asus.com for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 128 Mb Flash ROM, UEFI AMI BIOS | Intel® Socket LGA1700 for 13th Gen Intel® Core™ Processors & 12th Gen Intel® Core™, Pentium® Gold and Celeron® Processors* Supports Intel® Turbo Boost Technology 2.0 and Intel® Turbo Boost Max Technology 3.0** * Refer to www.asus.com for CPU support list. ** Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types. BIOS: 128 Mb Flash ROM, UEFI AMI BIOS |
Listed operating systems SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Windows® 11 64-bit, Windows® 10 64-bit | Windows® 11 64-bit, Windows® 10 64-bit, |
Memory type, slots and limitDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | 4 x DIMM, Max. 128GB, DDR4 5333(OC)/5000(OC)/4800(OC)/4600(OC)/4400(OC)/4266(OC)/4000(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 Non-ECC, Un-buffered Memory* " Dual Channel Memory Architecture Supports Intel® Extreme Memory Profile (XMP) OptiMem II *Actual memory data rate depends on the CPU types and DRAM modules, for more information refer to www.asus.com for memory support list. | 4 x DIMM, Max. 128GB, DDR4 5333(OC)/ 5066(OC)/5000(OC)/4800(OC)/4600(OC)/4400(OC)/4266(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133 MHz Dual Channel Memory Architecture Supports Intel® Extreme Memory Profile (XMP) OptiMem II *Actual memory data rate depends on the CPU types and DRAM modules, for more information refer to www.asus.com for the Memory QVL (Qualified Vendors Lists). |
Storage interfaces and restrictionsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Total supports 2 x M.2 slots and 4x SATA 6Gb/s ports* Intel® 12th Gen Processors M.2_1 slot (Key M), type 2242/2260/2280 - Intel® 12th Gen processors support PCIe 4.0 x4 mode. Intel® B660 Chipset** M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10. ** Intel® Rapid Storage Technology supports Intel® Optane Memory H Series on PCH attached M.2 slots | Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports* Intel®13th &12th Gen Processors M.2_1 slot (Key M), type 2242/2260/2280 Intel® B660 Chipset** M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * Intel® Rapid Storage Technology supports SATA RAID 0/1/5/10. ** Intel® Rapid Storage Technology supports Intel® Optane Memory H Series on PCH attached M.2 slots. |
Expansion slots and restrictionsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Intel® 12th Gen Processors 1 x PCIe 4.0/3.0 x16 slot Intel® B660 Chipset * 1 x PCIe 3.0 x16 slot (supports x4 mode) 1 x PCIe 3.0 x16 slot (supports x1 mode) *Supports Intel® Optane Memory H Series on PCH-attached PCIe slot | Intel®13th & 12th Gen Processors* 1 x PCIe 4.0/3.0 x16 slot Intel® B660 Chipset* 1 x PCIe 3.0 x16 slot (supports x4 mode) 1 x PCIe 3.0 x1 slot * Supports Intel® Optane Memory H Series on PCH-attached PCIE slot |
USB ports and headersDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Rear USB (Total 6 ports) 2 x USB 3.2 Gen 2 ports (2 x Type-A ) 4 x USB 2.0 ports (4 x Type-A) Front USB (Total 10 ports) 2 x USB 3.2 Gen 1 headers support additional 4 USB 3.2 Gen 1 ports 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 2 x USB 2.0 headers support additional 4 USB 2.0 ports 1 x USB 2.0 header support 1 USB 2.0 port | Rear USB (Total 6 ports) 2 x USB 3.2 Gen 2 ports (Type-A) 2 x USB 3.2 Gen1 ports (Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 2 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports |
Rear-panel portsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | 2 x USB 3.2 Gen 2 ports (2 x Type-A ) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 2 x HDMITM ports 1 x Intel® 1Gb Ethernet port 3 x Audio jacks 1 x PS/2 Keyboard/Mouse combo port | 2 x USB 3.2 Gen 2 ports 2 x USB 3.2 Gen 1 ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) 1 x DisplayPort 1 x HDMI® port 1 x Realtek2.5Gb Ethernet port 3 x Audio jacks 1 x V-M.2 slot (Key E) 1 x PS/2 Keyboard/Mouse combo port |
Audio interfacesDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback " Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers ** A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. | Realtek 7.1 Surround Sound High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Power pre-regulator reduces power input noise to ensure consistent performance - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. |
Network interfaces and requirementsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | 1 x Intel® 1Gb Ethernet | 1 x Realtek2.5Gb Ethernet TUF LANGuard; V-M.2 slot only (Key E, CNVi & PCIe)* * Wi-Fi module is sold separately. |
Internal headers and connectorsDifferent SourcesASUS PRIME B660M-A D4-CSM Manufacturer specification ASUS PRIME B660M-A D4-CSM — official Global technical specificationsASUS TUF GAMING B660M-E D4 Manufacturer specification ASUS TUF GAMING B660M-E D4 — official UK technical specifications | Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 2 x USB 3.2 Gen 1 headers support additional 4 USB 3.2 Gen 1 ports 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 2 x USB 2.0 headers support additional 4 USB 2.0 ports 1 x USB 2.0 header supports 1 USB 2.0 port Miscellaneous 3 x AURA Addressable Gen 2 headers 1 x AURA RGB header 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x LPT header 1 x S/PDIF Out header 1 x SPI TPM header (14-1pin) 1 x 20-3 pin System Panel header with Chassis intrude function | Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 2 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 2 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports 2 x USB 2.0 headers support additional 4 USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x AURA RGB header 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x 20-3 pin System Panel header with Chassis intrude function 1 x S/PDIF Out header |
Closest motherboards to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
