Asus PRIME B850M-K

Asus PRIME B850M-K AM5 Micro-ATX DDR5 128 GB Motherboard

Asus Motherboard $229.99

Compare seller pricing, scan the quick specs, and size this part up before adding it to your next build.

SocketAM5

ChipsetB850

Form FactorMicro-ATX

MemoryDDR5

Retailer links open in a new tab. Pricing can change quickly, so treat this page as a shortlist and confirm the final price with the seller.

Retailers

Live seller links for quick price checks.

PC Builder may earn a small commission when you buy through links on our site.

Prices and availability can change without notice and are confirmed at checkout with the seller.

The Asus PRIME B850M-K is a Micro-ATX motherboard for AM5. It supports DDR5 memory up to 8400 MT/s (OC).

Powerful Power Design: 8+2+1 power modules, 6-layer PCB design for system stability, Digi+ VRM digital power control with real-time voltage control Unlocking DDR5 Full-Blooded Performance: Up to DDR5 8400+MT/s (OC), three M.2 slots (up to 128 Gbps) Sophisticated Thermal Design: VRM heatsinks and thermal pads, 4-Pin PWM/DC fan, M.2 heatsink, intelligent protection PWM/DC fan, M.2 heatsink, Smart Protection Extreme Connectivity: PCIe 5.0 slot support

Manufacturer	Asus
Model Number	PRIME B850M-K
Launch Date	N/A
CPU Socket	AM5
Chipset Model	Intel B850
Board Size / Form Factor	Micro-ATX
Supported Memory Type	DDR5
DIMM Slots	2
Maximum RAM Capacity	128 GB
Valid DDR4 Speeds	DDR5-4800 / DDR5-5200 / DDR5-5600 / DDR5-5800 / DDR5-6000 / DDR5-6200 / DDR5-6400 / DDR5-6600 / DDR5-6800 / DDR5-7000 / DDR5-7200 / DDR5-7600 / DDR5-7800 / DDR5-8000 / DDR5-8200 / DDR5-8400 (OC)
ECC Memory Support	No
Expansion Slots (PCIe)	2 × PCIe x16
PCIe x16 (Qty)	2
PCIe x4 (Qty)	0
PCIe x1 (Qty)	0
M.2 Slot Count	2 × M.2
M.2 Device Compatibility	2280 - M Key, 2242 / 2260 / 2280 - M Key
SATA III Ports	0 × SATA 6Gbps
SATA Express Ports	0
Wired Networking (LAN)	N/A
Onboard Wi-Fi	No
Wi-Fi Standard	N/A
Rear-Panel USB	USB 3.2 Gen2, USB 3.2 Gen1, USB 2.0
Internal USB 3.2 Gen 2x2 Headers	0
Internal USB 3.2 Gen 2 Headers	1
Internal USB 3.2 Gen 1 Headers	1
Internal USB 2.0 Headers	2
NVIDIA SLI	No
AMD CrossFire	No
RAID Capability	Yes
Back-Connect Layout	No
Manufacturer Part Number (MPN)	PRIME B850M-K
SKU Code	PRIME B850M-K
GTIN / EAN	1.92876915127e+11