Name: ASUS Placa Base PRIME B850M A CSM mATX AM5
Brand: Asus
SKU: ICP04093
Availability: InStock

The ASUS PRIME B850M A CSM mATX AM5 motherboard provides a solid foundation for high-performance AMD systems. With an optimized design, it offers excellent thermal management and comprehensive connectivity, allowing users to maximize their components’ potential.nnEquipped with various expansion options and support for the latest technologies, this motherboard is perfect for gamers and professionals seeking reliability and flexibility. The installation is simple and intuitive, making it an ideal choice for custom PC builds or upgrades to existing systems.

Specifications

Brand	Asus
Model	Prime B850M-A-CSM (90MB1LQ0-M0EAYC)
Platform	– micro-ATX (24.4 cm x 24.4 cm)
Chipset	– AMD B850 Chipset
CPU Supported	– Supports AMD Ryzen 9000 & 8000 & 7000 Series with AMD AM5 Socket
Memory	– 4 DIMM slots, max. 256 GB, DDR5. Supports up to 8000+ MT/s with Ryzen series 9000, 8000, and 7000 processors – Dual channel memory architecture – Compatible with AMD extended profiles for overclocking (EXPO) – ASUS enhanced memory profile (AEMP)
Expansion Slots	– 1 x PCIe 5.0 x16 (supports x16 mode) – 1 x PCIe 4.0 x16 (supports x8/x4 mode) – 1 x PCIe 4.0 x16 (supports x4 mode)
Graphics	– 2 x DisplayPort – 1 x HDMI port
I/O Ports, Connectors	Internal – 1 x 4-pin CPU fan connector – 1 x 4-pin CPU OPT fan connector – 1 x 4-pin AIO pump connector – 3 x 4-pin chassis fan connectors – 1 x 24-pin main power connector – 1 x 8-pin +12 V CPU power connector – 1 x 4-pin +12 V CPU power connector – 3 x M.2 slots (Key M) – 4 x SATA 6 Gb/s ports – 1 x USB 5 Gbps connector (compatible with USB Type-C®) – 1 x USB 5 Gbps connector (compatible with 2 additional USB 5 Gbps ports) – 2 x USB 2.0 connectors (compatible with 4 additional USB 2.0 ports) – 3 x addressable Gen 2 RGB connectors – 1 x CMOS clear connector – 1 x chassis intrusion detection connector – 1 x COM port connector – 1 x front panel audio connector (F_AUDIO) – 1 x S/PDIF output connector – 1 x SPI TPM connector (14-1 pins) – 1 x 10-1 system panel header External – 2 x USB 10 Gbps ports (2 x Type A) – 2 x USB 5 Gbps ports (2 x Type A) – 4 x USB 2.0 ports (4 x Type A) – 2 x DisplayPort ports – 1 x HDMI port – 1 x 2.5 Gb Realtek Ethernet port – 3 x audio connectors – 1 x BIOS FlashBack button
Other Features	Storage – Supports 3 M.2 slots and 4 SATA 6 Gb/s ports – M.2_1 slot (Key M), type 2280 (compatible with PCIe 5.0 x4) – M.2_2 slot (Key M), type 2280 (compatible with PCIe 4.0 x4) – M.2_3 slot (Key M), type 2242/2260/2280 (compatible with PCIe 4.0 x4) – 4 x SATA 6 Gb/s ports USB – 2 x USB 10 Gbps ports (2 x Type A) – 2 x USB 5 Gbps ports (2 x Type A) – 4 x USB 2.0 ports (4 x Type A) – 1 x USB 5 Gbps connector (compatible with USB Type C) – 1 x USB 5 Gbps header compatible with 2 additional USB 5 Gbps ports – 2 x USB 2.0 headers compatible with 4 additional USB 2.0 ports Network – 1 x Realtek 2.5Gb Ethernet – ASUS LANGuard Audio – Realtek 7.1 Surround Sound high definition audio codec – Compatible with: connector detection, multiple streaming, front panel connector reassignment – Playback up to 24 bits/192 kHz – Audio shielding – High-quality audio capacitors – Dedicated audio PCB layers
Review Date	12-11-2025 by IS