ASUS PRIME B650M-A II-CSM Micro-ATX commercial motherboard, DDR5 6400+(OC), PCIe 5.0 M.2 support, Realtek 2.5Gb Ethernet, DisplayPort, VGA, HDMI, SATA 6 Gbps, USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C, BIOS FlashBack, Arua Sync
5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory*
* 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 under the Support tab or visit https://www.asus.com/support/
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Overview
Specs
Reviews (9)
Learn more about the ASUS PRIME B650M-A II-CSM
Model
Brand
ASUS
Model
PRIME B650M-A II-CSM
Part Number
90MB1EH0-M0AAYC
Supported CPU
CPU Socket Type
AM5
CPU Type
Supports AMD Ryzen 7000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
Chipsets
Chipset
AMD B650
Memory
Number of Memory Slots
4x288pin (DDR5)
Memory Standard
DDR5 6400+(OC)/6200(OC)/6000(OC)/5800(OC)/5600(OC)/5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory*
Maximum Memory Supported
256GB
Channel Supported
Dual Channel
ECC Supported
Yes
Buffer Supported
Un-buffered
Memory Feature
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 under the Support tab or visit https://www.asus.com/support/
AMD Ryzen 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)
AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
SATA RAID
AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10.
Onboard Audio
Audio Chipset
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 Japanese audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1-channel audio output.
Audio Channels
7.1 Channels
Onboard LAN
Max LAN Speed
1 x Realtek 2.5Gb Ethernet
Rear Panel Ports
Back 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 Connectors
Onboard 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
Other Connectors
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
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
Physical Spec
Form Factor
Micro ATX
Dimensions (W x L)
9.6" x 9.6"
Power Pin
1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector
Software Feature
Windows 11
Supported
Features
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
Packaging
Package Contents
Cables 2 x SATA 6Gb/s cables
Miscellaneous 1 x I/O Shield 1 x Screw packages for M.2 SSD
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