MotherboardsAsus
Asus Prime B850M-A WIFI (Socket AM5) DDR5 Micro-ATX Motherboard
MPN: 90MB1LN0-M0EAY0
Key specifications
SocketAM5
Form factormATX
ChipsetAMD B850
Memory typeDDR5
M.2 slots3
Max Memory256 GB
Full Specifications47 fields
Additional Information
Model Number
90MB1LN0-M0EAY0
Gtin
4711636051125
Additional Specifications
Water Cooled
No
Cooling
Passive Heatsinks
Qpi Speed
N/A
Dimensions
244 x 244 mm
Note
-
Colour
Primary Colour
Black
Core Specifications
Edition
PRIME B850M-A WIFI
Form Factor
MicroATX
Chipset
AMD B850
CPU
Cpu Manufacturer
AMD
Socket
AM5
External Connectivity
Network Interface Type
802.11ax Wi-Fi 6E LAN
Wired 2.5 Gigabit LAN (10/100/1000/2500)
Network Chip Modules
1 x 802.11ax WiFi 6E + BT5.3
1 x Realtek (2.5GbE LAN)
Rear I O Connectors
1 x BIOS Flashback Button
2 x DisplayPort 1.4
1 x HDMI 2.1
1 x Line In
1 x Line Out
1 x Mic-In
1 x RJ-45
4 x USB 2.0
2 x USB 3.2 Gen1 Type-A
2 x USB 3.2 Gen2 Type-A
1 x WiFi 802.11ax 6E / Bluetooth 5.3
Fan Header
4 Pin Fan Connectors
6
Form Factor
Motherboard Formfactor
Micro-ATX
Graphics Support
Primary Gpu Interface
PCIe 5.0 (x16)
Nvidia Sli Support
N/A
Amd Crossfire Support
N/A
Integrated Graphics
Requires Processor Graphics or Discrete GPU
On Board Graphics Connectors
DisplayPort 1.4
HDMI 2.1
Internal Connectivity
Expansion Slots
1 x M.2, 22-42/60/80, PCIe Gen4x4
1 x M.2, 22-80/110, PCIe Gen4x4
1 x M.2, 22-80/110, PCIe Gen5x4
1 x PCIe 4.0 x16 (x4 Bandwidth)
1 x PCIe 5.0 x16
4 x SATA 6GB/
s
Sata Support
SATA3
Raid Support Via
Yes
Storage Mode Support
RAID 0
RAID 1
RAID 10
RAID 5
Internal I O
1 x 24-pin (Power)
1 x 4-pin (Power)
1 x 4-pin AIO Pump Connector
3 x 4-pin CHA_FAN connector
1 x 4-pin CPU Fan Connector
1 x 4-pin CPU OPT Fan Connector
1 x 8-pin (Power)
3 x Addressable Gen 2 Header
1 x Chassis Intrusion connector
1 x Clear CMOS Header
1 x Front Panel Audio Header
3 x M.2
1 x S/PDIF-Out Header
4 x SATA III - 6Gb/s
1 x Serial (COM) Header
1 x System panel connector
1 x TPM (SPI_TPM) header
2 x USB 2.0 Header
1 x USB 3.2 Gen1
1 x USB 3.2 Gen1 Header
Internal Ports
Cpu Power Supply
1x 4-Pin + 1x 8-Pin
Lighting
Lighting Rgb
Yes
Memory
Max Memory
256 GB
Memory Type
DDR5
Memory Form Factor
DIMM
Memory Slots
4x
Motherboard
Motherboard Chipset
AMD B850
RAM Memory Support
Memory Channel
Dual (2)
Memory Type Ecc
ECC/Non-ECC
Memory Type R U
UDIMM (Unbuffered)
Memory Speed Mhz
DDR5 - 8200(OC)
Max Memory Capacity
256GB
Wi
Fi Lan Lan
Yes
Fi Lan Lan Ports
1x 2.5 Gbit/s
Fi Lan Wi Fi Bluetooth
Yes
General
Audio
7.1 Channel HD Audio
Best indexed price
£170.98GBP
Indexed 25 May 2026 — verify at retailer
Retailer offers
More retailers coming
We only list a retailer once we hold verified offer data for it. No placeholder prices, ever.
