Skip to content

We may earn commission on links. How we make money

ASUS PRIME B860M-A-CSM Intel Micro-ATX Motherboard
MotherboardsAsus

ASUS PRIME B860M-A-CSM Intel Micro-ATX Motherboard

MPN: 90MB1K00-M0EAYC

Key specifications

SocketLGA 1851
Form factormATX
ChipsetIntel B860
Memory typeDDR5
M.2 slotsUnknown
Max Memory192 GB
Best indexed price
£139.47GBP
Indexed 20 Oct 2026 — verify at retailer. How we get prices

Retailer offers

Scan£139.47
Indexed 20 Oct 2026New
Check price at Scan
eBay UK£159.00
Indexed 16 Mar 2026New · seller sebeam
Check price at eBay
Amazon UKProduct link
Find on Amazon
More retailers coming

We only list a retailer once we hold verified offer data for it. No placeholder prices, ever.

Indexed prices are snapshots, not live quotes. Confirm price, stock and delivery on the retailer's site — checkout completes there.

We may earn a commission from these links. How it works

Fit check

Add this to your build in the PC Builder to automatically check dimensions, sockets, and power draw.

Check against your build

Same specs for less

Matched on the listed specs that matter for this kind of part, at each listing's lowest new price. Other details (cooling, warranty, looks) can differ.

Related Products

ASUS TUF GAMING A520M-PLUS II
Asus

TUF GAMING A520M-PLUS II

ASUS TUF GAMING B850-PLUS WIFI
Asus

TUF GAMING B850-PLUS WIFI

ASUS ROG STRIX B560-G GAMING WIFI
Asus

ROG STRIX B560-G GAMING WIFI

ASUS PRIME B760-PLUS D4
Asus

PRIME B760-PLUS D4

Full Specifications31 fields

Additional Information

Model Number
90MB1K00-M0EAYC
Gtin
4711387819869

Additional Specifications

Water Cooled
No
Cooling
Passive Heatsinks
Qpi Speed
N/A
Dimensions
244 x 244 x 50 (L x W x H) mm
Note
-

Core Specifications

Edition
PRIME B860M-A-CSM
Form Factor
MicroATX
Socket
1851
Chipset
Intel B860

External Connectivity

Network Interface Type
Wired 2.5 Gigabit LAN
Network Chip Modules
1 x Realtek (2.5GbE LAN)
Rear I O Connectors
1 x 10/100/1000/2500 (LAN) 3 x Audio I/O 2 x DisplayPort 1 x HDMI 3 x USB 4 x USB 2.0 1 x USB Type-C

Graphics Support

Primary Gpu Interface
PCIe 5.0 (x16)
Nvidia Sli Support
N/A
Amd Crossfire Support
N/A
Integrated Graphics
-
On Board Graphics Connectors
None

Internal Connectivity

Expansion Slots
-
Sata Support
N/A
Raid Support Via
-
Storage Mode Support
-
Internal I O
1 x 24-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) 4 x SATA III - 6Gb/s 2 x USB 2.0 Header 1 x USB Header

RAM Memory Support

Memory Type
DDR5
Memory Channel
Dual (2)
Memory Type Ecc
Non-ECC
Memory Type R U
UDIMM (Unbuffered)
Memory Speed Mhz
DDR5 - 8400(OC)
Max Memory Capacity
192GB

General

Audio
7.1 Channel HD Audio