ASUS PRIME B860M-A-CSM mATX Motherboard | LGA1851 | 4x DDR5 Slots

Sku: 90MB1K00-M0EAYC
Availability: In Stock
Brand: ASUS
Category: Motherboards
Regular price £133.79
Regular price Sale Price £133.79

KEY FEATURES

  • Intel LGA 1851 (Socket V1) Intel Core Ultra (Series 2)
  • PC micro ATX Intel B860 7.1 channels
  • DDR5-SDRAM 4 DIMM Maximum internal memory: 256 GB
  • HDD & SSD M.2, SATA III RAID support Number of storage drives supported: 6
  • BIOS type: UEFI AMI 256 Mbit
  • 2.5 Gigabit Ethernet
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ASUS PRIME B860M-A-CSM mATX Motherboard | LGA1851 | 4x DDR5 Slots

ASUS PRIME B860M-A-CSM mATX Motherboard | LGA1851 | 4x DDR5 Slots

Regular price £133.79
Regular price Sale Price £133.79
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Rated Excellent on Trustpilot Carbon Neutral Deliveries Free Standard Delivery Over £99
Description Specification Review FAQ

Description

The ASUS PRIME B860M-A-CSM brings Intel's latest B860 chipset to a compact micro-ATX form factor, designed around the new LGA1851 socket for Intel Core Ultra Series 2 processors. This mainstream board balances essential features with cost-effectiveness, making it well-suited for office builds, compact gaming systems, and general-purpose desktop computers where space efficiency matters. The micro-ATX size fits into smaller cases while maintaining full functionality for most users' needs.

Memory support extends to DDR5 with speeds up to 8666 MHz across four DIMM slots, accommodating up to 256 GB total capacity - plenty for demanding applications and future expansion. The board includes one PCIe 4.0 x16 slot for your graphics card plus an additional PCIe 4.0 x1 slot for expansion cards like Wi-Fi adapters or sound cards. ASUS includes their proven UEFI BIOS interface with 256Mb Flash ROM, providing straightforward system configuration and monitoring tools.

XMP memory profile support simplifies DDR5 setup by automatically configuring memory to rated speeds rather than requiring manual timing adjustments. The board comes with standard accessories including an I/O shield, SATA cables for storage connections, and detailed documentation to guide your build process. Single CPU fan connector provides thermal management for your processor cooling solution.

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  • Next Business Day:  £6.99

  • 2 days Delivery: £4.99

  • 3- 5 Days Shipping: £3.99

  • Orders Over £99.00: Free Standard Delivery
Processor
Processor manufacturer Intel
Processor socket LGA 1851 (Socket V1)
Compatible processor series Intel Core Ultra (Series 2)
Memory
Supported memory types DDR5-SDRAM
Number of memory slots 4
Memory slots type DIMM
Memory channels Dual-channel
ECC сompatibility Non-ECC
Supported memory clock speed (max) 8666 MHz
Maximum internal memory 256 GB
Unbuffered memory Yes
Storage controllers
Supported storage drive types HDD & SSD
Supported storage drive interfaces M.2, SATA III
Number of storage drives supported 6
Number of HDDs supported 4
RAID support Yes
RAID levels 0, 1, 5, 10
Graphics
Parallel processing technology support Not supported
Internal I/O
USB 2.0 connectors 1
USB 3.2 Gen 1 (3.1 Gen 1) connectors 1
USB 3.2 Gen 2 (3.1 Gen 2) connectors 1
Number of SATA III connectors 4
S/PDIF out connector Yes
Front panel audio connector Yes
ATX Power connector (24-pin) Yes
CPU fan connector Yes
Number of CPU fan connectors 1
Number of chassis fan connectors 3
Chassis intrusion connector Yes
EPS power connector (8-pin) Yes
12V power connector Yes
Thunderbolt headers 1
TPM connector Yes
Number of COM connectors 1
Rear panel I/O ports
USB 2.0 ports quantity 4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 1
USB 3.2 Gen 2x2 Type-C ports quantity 1
Ethernet LAN (RJ-45) ports 1
HDMI ports quantity 1
DisplayPorts quantity 2
Line-in Yes
Microphone in Yes
Network
Ethernet LAN Yes
Ethernet interface type 2.5 Gigabit Ethernet
Wi-Fi No
Top Wi-Fi standard Not available
Features
Component for PC
Motherboard form factor micro ATX
Motherboard chipset family Intel
Motherboard chipset Intel B860
Audio output channels 7.1 channels
Product colour Multicolour
Windows operating systems supported Windows 10 x64, Windows 11
Expansion slots
PCI Express x1 (Gen 4.x) slots 1
PCI Express x16 (Gen 4.x) slots 1
Number of M.2 (M) slots 2
BIOS
BIOS type UEFI AMI
BIOS memory size 256 Mbit
Packaging data
Package width 275 mm
Package depth 275 mm
Package height 67.5 mm
Package weight 1.36 kg
Weight & dimensions
Width 244 mm
Depth 244 mm
Height 50 mm
Other features
Weight 815 g

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