MotherboardsAsus
ASUS PRIME B650M-A
MPN: 21166
Key specifications
SocketAM5
Form factormATX
ChipsetAMD B650 Chipset
Memory typeDDR5
M.2 slots4
Max MemoryUnknown
Full Specifications22 fields
General
Model
PRIME B650M-A
Cpu
AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
Chipset
AMD B650 Chipset
Memory
- 4 x DIMM, DDR5 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
- * Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function.
Graphics
- 1 x DisplayPort
- 1 x VGA port
- 1 x HDMI
- ®
- port
- * Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
- ** Supports max. 8K@60Hz as specified in DisplayPort 1.4.
- *** Supports 4K@60Hz as specified in HDMI
- ®
- 2.1.
Expansion Slots
- 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 x16 slots (support x1 mode)
- * Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/ 1037507/).
- ** Specifications vary by CPU types.
Storage
- 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)
- AMD Ryzen™ 8000 Series Desktop Processors
- M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
- AMD B650 Chipset
- M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
- 4 x SATA 6Gb/s ports
- * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10.
Ethernet
1 x Realtek 2.5Gb Ethernet
Usb
- 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
Audio
- 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.
Back Panel I O 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)
- 1 x DisplayPort
- 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
Internal I O
- Fan and Cooling related
- 1 x 4-pin CPU Fan header
- 1 x 4-pin CPU OPT Fan header
- 3 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
- 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 S/PDIF Out header
- 1 x Speaker header
- 1 x SPI TPM header (14-1pin)
- 1 x 10-1 pin System Panel header
Special Features
- ASUS 5X PROTECTION III
- - DIGI+ VRM
- - LANGuard
- - Overvoltage Protection
- - Safeslot Core+
- - Stainless-Steel Back I/O
- ASUS Q-Design
- - Q-DIMM
- - Q-LED Core
- - Q-Slot
- ASUS Thermal Solution
- - VRM heatsink design
- ASUS EZ DIY
- - BIOS FlashBack
- ™
- button
- - BIOS FlashBack
- ™
- LED
- Aura Sync
- - Aura RGB header
- - Addressable Gen 2 headers
Software Features
- ASUS Exclusive Software
- Armoury Crate
- - Aura Creator
- - Aura Sync
- - Fan Xpert 2+
- - Power Saving
- AI Suite 3
- - TurboV EVO
- - DIGI+ VRM
- - PC Cleaner
- ASUS CPU-Z
- Norton Anti-virus software (Free Trial version)
- WinRAR
- UEFI BIOS
- ASUS EZ DIY
- - ASUS CrashFree BIOS 3
- - ASUS EZ Flash 3
- - ASUS UEFI BIOS EZ Mode
Bios
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Accessories
- Cables
- 2 x SATA 6Gb/s cables
- Miscellaneous
- 1 x I/O Shield
- 1 x Screw Package for M.2 SSD
- Documentation
- 1 x User guide
Operating System
- Windows
- ®
- 11, Windows
- ®
- 10 64-bit
Form Factor
- mATX Form Factor
- 9.6 inch x 9.6 inch ( 24.4 cm x 24.4 cm )
Physical Dimensions
Length Mm
243.8
Width Mm
243.8
Height Mm
619.8
Best indexed price
£353.50GBP
Indexed 26 May 2026 — verify at retailer
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