MotherboardsAsus
Asus Prime B860M-K (LGA 1851) DDR5 Micro-ATX Motherboard
MPN: 90MB1JT0-M0EAY0
Key specifications
SocketLGA 1851
Form factormATX
ChipsetIntel B860
Memory typeDDR5
M.2 slots2
Max Memory96 GB
Full Specifications75 fields
Additional Information
Model Number
90MB1JT0-M0EAY0
Gtin
4711387808498
Additional Specifications
Water Cooled
No
Cooling
Passive Heatsinks
Qpi Speed
N/A
Dimensions
-
Note
-
Colour
Primary Colour
Black
Cooling
Backplate
Yes
M 2 Heatsinks
Yes
Vrm Heatsinks
Yes
Core Specifications
Edition
PRIME B860M-K
Form Factor
MicroATX
Chipset
Intel B860
CPU
Cpu Manufacturer
Intel
Socket
1851
Dimensions
Length Depth
244 mm
Width
222 mm
Height
38 mm
Expansion Slots
Pcie X16 Slots Total
1
Pcie X1 Slots Total
1
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
1 x DisplayPort
1 x HDMI
1 x PS/
2 Keyboard/Mouse Combo
3 x USB 2.0
External Ports
Usb 3 1 External Type A
1
Usb 3 0 External Type A
2
Usb 2 0 External Type A
3
Display Connectors
HDMI (1x), Display Port (1x)
Fan Header
4 Pin Fan Connectors
3
Form Factor
Motherboard Formfactor
Micro-ATX
Graphics Support
Primary Gpu Interface
PCIe 4.0 (x16)
Nvidia Sli Support
N/A
Amd Crossfire Support
N/A
Integrated Graphics
-
On Board Graphics Connectors
None
Internal Connectivity
Expansion Slots
1 x M.2, 22-42/60/80, PCIe Gen4x4
1 x M.2, 22-42/60/80, PCIe Gen5 x4
2 x PCIe 4.0 x1
1 x PCIe 4.0 x16
Sata Support
N/A
Raid Support Via
SATA
Storage Mode Support
RAID 0
RAID 1
RAID 10
RAID 5
Internal I O
1 x 24-pin (Power)
1 x 4-pin (Power)
2 x 4-pin CHA_FAN connector
1 x 8-pin (Power)
2 x Addressable Gen 2 Header
1 x Aura RGB Header
1 x Clear CMOS Header
1 x Front Panel Audio Header
1 x Front Panel Connector
1 x S/PDIF-Out Header
4 x SATA III - 6Gb/s
1 x Serial (COM) Header
1 x TPM (SPI_TPM) header
2 x USB 2.0 Header
Internal Ports
Cpu Power Supply
1x 8-Pin
Usb 3 0 3 1 3 2 Internal Type C Header
1
Usb 3 0 3 1 3 2 Internal Type C Possible Ports
1
Usb 3 0 Internal Header
1
Usb 3 0 Internal Possible Ports
2
Usb 2 0 Internal Header
2
Usb 2 0 Internal Possible Ports
4
Rgb Led Connectors
1x RGB (4-Pin 5050 12VGRB), 2x Digital RGB (3-Pin 5VDG)
Front Panel Audio Header
Yes
Spi Tpm Header
Yes
Lighting
Lighting Rgb
Yes
Memory
Max Memory
96 GB
Memory Type
DDR5
Memory Form Factor
DIMM
System Memory Subtype
UDIMM, CUDIMM
Max Memory Speed Oc
8800 MT/s
Eec Support
Yes
Memory Slots
2x
Motherboard
Motherboard Chipset
Intel B860
Built In I O Shield
Yes
RAM Memory Support
Memory Channel
Dual (2)
Memory Type Ecc
Non-ECC
Memory Type R U
UDIMM (Unbuffered)
Memory Speed Mhz
DDR5 - 8800(OC)
Max Memory Capacity
96GB
Storage Ports
M 2 Pcie 4 0 X4
1
M 2 Pcie 5 0 X4
1
Sata 6g Internal
4
Wi
Fi Lan Lan
Yes
Fi Lan Lan Ports
1x 2.5 Gbit/s
Fi Lan Wi Fi Bluetooth
No
General
Audio
7.1 Channel HD Audio
Best indexed price
£150.55GBP
Indexed 16 Mar 2026 — verify at retailer
