UK manufacturer specification · PRIME B650M-K
PRIME B650M-K 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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Manufacturer specificationsGlobal manufacturer specification · PRIME B650M-K-CSM
PRIME B650M-K-CSM motherboard, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.
Specifications checked 17 Oct 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
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Missing information stays separate.
No verified changes in the shared fields shown here. This does not establish that the products are equivalent.
13 shared fields have the same recorded value.
| Specification | ASUS PRIME B650M-K | ASUS PRIME B650M-K-CSM |
|---|---|---|
CPU socket SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | AM5 | AM5 |
Chipset SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | AMD B650 Chipset | AMD B650 Chipset |
Form factor and dimensions SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | micro-ATX Form Factor 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm ) | micro-ATX Form Factor 9.6 inch x 8.7 inch ( 24.4 cm x 22.1 cm ) |
CPU support and BIOS requirements SourcesASUS PRIME B650M-K 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 B650M-K — official UK technical specificationsASUS PRIME B650M-K-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 B650M-K-CSM — official Global technical specifications | AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors* Supports up to AMD 170W CPU * Refer to www.asus.com for CPU support list. BIOS: 256 Mb Flash ROM, UEFI AMI BIOS | AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors* Supports up to AMD 170W CPU * Refer to www.asus.com for CPU support list. BIOS: 256 Mb Flash ROM, UEFI AMI BIOS |
Listed operating systems SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | Windows® 11, Windows® 10 64-bit | Windows® 11, Windows® 10 64-bit |
Memory type, slots and limit SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | 2 x DIMM, Max. 96GB, DDR5 8000+(OC)/7800(OC)/7600(OC)/7200(OC)/7000(OC)/6800(OC)/6600(OC)/6400(OC)/6200(OC)/6000(OC)/5800(OC)/5600(OC)/5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory* Dual Channel Memory Architecture Supports AMD Extended Profiles for Overclocking (EXPO™) OptiMem II * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/. * Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function. | 2 x DIMM, Max. 96GB, DDR5 8000+(OC)/7800(OC)/7600(OC)/7200(OC)/7000(OC)/6800(OC)/6600(OC)/6400(OC)/6200(OC)/6000(OC)/5800(OC)/5600(OC)/5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory* Dual Channel Memory Architecture Supports AMD Extended Profiles for Overclocking (EXPO™) OptiMem II * Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/. * Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function. |
Storage interfaces and restrictions SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports* AMD Ryzen™ 9000 & 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) AMD Ryzen™ 8000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)** AMD B650 Chipset 4 x SATA 6Gb/s ports * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. ** Specifications vary by CPU types. | Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports* AMD Ryzen™ 9000 & 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) AMD Ryzen™ 8000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)** AMD B650 Chipset 4 x SATA 6Gb/s ports * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. ** Specifications vary by CPU types. |
Expansion slots and restrictions SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | AMD Ryzen™ 9000 & 7000 Series Desktop Processors* 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 8000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)** AMD B650 Chipset 2 x PCIe 4.0 x1 slots * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). ** Specifications vary by CPU types. | AMD Ryzen™ 9000 & 7000 Series Desktop Processors* 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 8000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)** AMD B650 Chipset 2 x PCIe 4.0 x1 slots * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). ** Specifications vary by CPU types. |
USB ports and headers SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | Rear USB (Total 8 ports) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports | Rear USB (Total 8 ports) 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports |
Rear-panel ports SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x VGA port 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port | 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x VGA port 1 x HDMI™ port 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port |
Audio interfaces SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global 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 - 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 requirements SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | 1 x Realtek 2.5Gb Ethernet | 1 x Realtek 2.5Gb Ethernet |
Internal headers and connectors SourcesASUS PRIME B650M-K Manufacturer specification ASUS PRIME B650M-K — official UK technical specificationsASUS PRIME B650M-K-CSM Manufacturer specification ASUS PRIME B650M-K-CSM — official Global technical specifications | Fan and Cooling related 1 x 4-pin CPU 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 1 connector (supports USB Type-C® ) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 2 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 S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header | Fan and Cooling related 1 x 4-pin CPU 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 1 connector (supports USB Type-C® ) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 2 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 S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel 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.
