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Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps

Product image: Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps, , medium-null
Product image: Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps, , medium-null
Product image: Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps, , medium-null
Product image: Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps, , medium-null
Product image: Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps, , medium-null
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Asus prime b860-plus-csm business motherboard atx lga1851 intel b860 ddr5 pcie 5.0 USB-c 20GBps

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From Singular Computers Systems LTD
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Description

Item No. 007eec30-6197-49c7-a021-5466d9a365ec
Singular Selected ASUS Prime B860-PLUS-CSM Business Motherboard A full-size ATX board built for business and integrator builds — Intel Core Ultra (Series 2) on LGA1851, three M.2 slots, USB-C 20GBps, 2.5GBE and the ASUS CSM program with up to 36-month lifecycle support and ASUS Control Center Express IT software. CSM Lifecycle ProgramLGA1851 · Intel B860DDR5 to 192GBUSB-C 20GBps The ASUS Prime B860-PLUS-CSM is the corporate / commercial variant of the Prime B860-PLUS, a full-size ATX motherboar

Attributes

Motherboard Characteristics

  • Processor Socket: Socket 1851

Details

Singular Selected

ASUS Prime B860-PLUS-CSM Business Motherboard

A full-size ATX board built for business and integrator builds —Intel Core Ultra (Series 2) on LGA1851, three M.2 slots, USB-C 20GBps, 2.5GBE and the ASUS CSM program with up to 36-month lifecycle support and ASUS Control Center Express IT software.
CSM Lifecycle ProgramLGA1851 · Intel B860DDR5 to 192GBUSB-C 20GBps

The ASUS Prime B860-PLUS-CSM is the corporate / commercial variant of the Prime B860-PLUS, a full-size ATX motherboard forIntel Core Ultra Processors (Series 2) on LGA1851 and the Intel B860 chipset. Designed for business, education, healthcare and integrator builds, it adds the ASUS Corporate Stable Model (CSM) program — up to 36 months of stable supply, 6-month end-of-life notice and ASUS Control Center Express, server-grade IT management software included with the board. It pairs a PCIe 5.0 x16 graphics slot with three M.2 slots (one PCIe 5.0 x4 + two PCIe 4.0) and four SATA 6GB/s ports, four DDR5 DIMMs up to 192GB at speeds up to 7200+ MT/s (OC), Realtek 2.5GBE wired LAN and a rear USB 3.2 Gen 2x2 (20GBps) Type-C port.

Compatibility Note: Requires an Intel LGA1851 (Core Ultra Series 2) processor, DDR5 memory and an ATX-compatible chassis. CPU and discrete GPU sold separately. The board has no onboard Wi-Fi or Bluetooth — a vertical M.2 Key E slot is provided for an optional Wi-Fi / Bluetooth module (CNVi or PCIe). For the Wi-Fi variant choose the Prime B860-PLUS WIFI-CSM instead.
Best For
✓ Business, SMB and enterprise PC fleets
✓ System integrators needing stable long-term supply
✓ AI PC and productivity workstations
✓ IT-managed deployments using ACC Express

Key Features

 
ASUS CSM Program
Corporate Stable Model designation: up to 36-month product lifecycle support and a 6-month end-of-life notice — predictable supply for fleet rollouts and integrator deployments.
 
ASUS Control Center Express
Server-grade IT management software bundled with the board — remote monitoring, power control, asset tracking and alerts to simplify IT administration.
 
PCIe 5.0 + 3 x M.2 NVMe
Reinforced PCIe 5.0 x16 graphics slot plus three M.2 slots — one PCIe 5.0 x4 (CPU) and two PCIe 4.0 x4 (chipset) for fast, modern NVMe storage layouts.
 
USB-C 20GBps + 2.5GBE
Rear USB 3.2 Gen 2x2 (20GBps) Type-C port for fast external storage and docks, plus Realtek 2.5GBE wired LAN with ASUS LANGuard for office networking.

Technical Specifications

Part Number 90MB1K00-M0EAYC
Form Factor ATX
Socket LGA1851 (Intel Core Ultra Processors Series 2)
Chipset Intel B860
CSM Program ASUS Corporate Stable Model — up to 36-month lifecycle, 6-month end-of-life notice, ASUS Control Center Express IT management software included
Memory 4 x DDR5 DIMM, max 192GB, dual channel, up to 7200+ MT/s (OC), XMP, AEMP III, Non-ECC unbuffered
Onboard Graphics 1 x DisplayPort 1.4 (max 4K@60Hz) + 1 x HDMI 2.1 (max 4K@60Hz) — requires CPU with iGPU
PCIe Slots 1 x PCIe 5.0 x16 (CPU, SafeSlot) + 1 x PCIe 4.0 x16 (chipset, x4 mode) + 1 x PCIe 4.0 x1
M.2 Slots M2_1 PCIe 5.0 x4 (CPU, 2242/2260/2280) + M2_2 PCIe 4.0 x4 (chipset, 2242/2260/2280/22110) + M2_3 PCIe 4.0 x4 (chipset, 2242/2260/2280) + 1 x M.2 Key E (Wi-Fi module slot, optional, CNVi & PCIe)
SATA 4 x SATA 6GB/s, RAID 0/1/5/10
LAN Realtek 2.5GBE + ASUS LANGuard
Wireless Not included — vertical M.2 Key E slot supports optional CNVi or PCIe Wi-Fi module
Audio Realtek 7.1 HD Audio CODEC, 24-bit/192kHz, audio shielding
Rear USB 1 x USB 3.2 Gen 2x2 Type-C (20GBps) + USB 3.2 Gen 2 + USB 3.2 Gen 1 + USB 2.0 ports
Internal USB Headers 1 x USB-C 5GBps front + USB 3.2 Gen 1 + USB 2.0 headers
Display OuTPUts HDMI 2.1 + DisplayPort 1.4
Power Connectors 1 x 24-pin ATX + 1 x 8-pin EPS 12V (ProCool)
Thermal / Protection VRM heatsink, M.2 heatsink, ASUS 5X Protection III, SafeSlot, Q-LED Core, stainless-steel back I/O
BIOS UEFI AMI BIOS
Operating System Windows 11 (22H2 & later), Windows 10 64-bit (21H2 & later)
EAN 4711387819869

Frequently Asked Questions

What does the "CSM" suffix mean?
CSM stands for ASUS Corporate Stable Model — a commercial program providing predictable lifecycle, longer supply continuity (up to 36 months), 6-month end-of-life notices, and bundled ASUS Control Center Express IT management software. It is hardware-equivalent to the consumer Prime B860-PLUS but optimised for business deployments.
Does it have built-in Wi-Fi?
No. The Prime B860-PLUS-CSM is a wired-only board with Realtek 2.5GBE. A vertical M.2 Key E slot is provided so you can add an optional Wi-Fi / Bluetooth module (CNVi or PCIe). For onboard Wi-Fi 6E, choose the Prime B860-PLUS WIFI-CSM variant.
Which CPUs does it support?
It supportsIntel Core Ultra Processors (Series 2) on the LGA1851 socket. Always check the ASUS CPU support list and update BIOS if needed before installing a new CPU.
How many M.2 slots are there?
Three M.2 slots for SSDs — M2_1 is PCIe 5.0 x4 (CPU), M2_2 is PCIe 4.0 x4 (chipset, supports up to 22110 length), and M2_3 is PCIe 4.0 x4 (chipset). A fourth M.2 Key E slot is reserved for an optional Wi-Fi module.
Singular Expert Insight
Choose the Prime B860-PLUS-CSM if you are building business or fleet PCs that need predictable supply, lifecycle management and bundled IT software. If you are a home / DIY builder, the consumer Prime B860-PLUS is hardware-equivalent and usually a better choice. If you need built-in Wi-Fi, the Prime B860-PLUS WIFI-CSM is the matching CSM Wi-Fi variant. For unlocked CPU overclocking, step up to a Z890 board.

Buyer's Guide

Buy it if
You build business / SMB / integrator PC fleets and need ASUS CSM lifecycle support and ACC Express IT management on a B860 ATX platform.
Skip it if
You are a home / DIY builder, need built-in Wi-Fi, or want unlocked CPU overclocking on a Z890 platform.
Also consider
Prime B860-PLUS (consumer), Prime B860-PLUS WIFI-CSM (with Wi-Fi 6E) or a Z890 CSM board for full overclocking.