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Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan

Product image: Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan-null
Product image: Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan-null
Product image: Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan-null
Product image: Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan-null
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Asrock b860 pro rs motherboard atx lga1851 intel b860 ddr5 pcie 5.0 m.2 Gen5 2.5G lan

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Description

Item No. dc80e053-e28a-4068-9611-4046318d9ad9
Singular Selected ASRock B860 Pro RS ATX Motherboard A balanced LGA1851 ATX board for Intel Core Ultra Series 2 builds, with PCIe 5.0, DDR5 up to 8666+ MHz and a Gen5 M.2 slot for next-gen NVMe. LGA1851 · B860 DDR5 8666+ (OC) PCIe 5.0 + M.2 Gen5 2.5G LAN The ASRock B860 Pro RS is an ATX motherboard built around the Intel B860 chipset and the LGA1851 socket, designed for Intel Core Ultra Series 2 desktop processors. It pairs a 10+1+1+1+1 phase Dr.MOS power design with four DDR5 slots reaching 86

Details

Singular Selected

ASRock B860 Pro RS ATX Motherboard

A balanced LGA1851 ATX board forIntel Core Ultra Series 2 builds, with PCIe 5.0, DDR5 up to 8666+ MHz and a Gen5 M.2 slot for next-gen NVMe.
LGA1851 · B860 DDR5 8666+ (OC) PCIe 5.0 + M.2 Gen5 2.5G LAN
The ASRock B860 Pro RS is an ATX motherboard built around the Intel B860 chipset and the LGA1851 socket, designed forIntel Core Ultra Series 2 desktop processors. It pairs a 10+1+1+1+1 phase Dr.MOS power design with four DDR5 slots reaching 8666+ MHz (OC), a PCIe 5.0 x16 slot for the GPU and a Blazing M.2 Gen5 slot for the latest NVMe SSDs — a B-series board that punches above its tier without forcing you into a Z-chipset price.
Compatibility Note: Requires an LGA1851Intel Core Ultra Series 2 CPU. This is the non-WiFi revision — no onboard Wi-Fi or Bluetooth; the M.2 Key E slot accepts an optional WiFi card. CPU is required for graphics ouTPUt (no iGPU on the board itself).
Best For
✓ Mid-range Core Ultra builds
✓ Gaming PCs with PCIe 5.0 GPUs
✓ Creators needing fast Gen5 NVMe
✓ DDR5 overclockers on a budget

Key Features

 
PCIe 5.0 + Blazing M.2 Gen5
A PCIe 5.0 x16 GPU slot and a Gen5x4 M.2 slot deliver full next-gen bandwidth for new graphics cards and ultra-fast NVMe SSDs.
 
DDR5 up to 8666+ MHz (OC)
Four DDR5 DIMM slots, dual-channel, supporting up to 256GB. CUDIMM support and pre-tested XMP/EXPO profiles for stable high-frequency kits.
 
10+1+1+1+1 Dr.MOS VRM
A Dr.MOS power design for VCore, GT and SA rails delivers stable performance for mainstream and mid-tier Core Ultra Series 2 CPUs.
 
2.5G LAN + Modern USB
Realtek 2.5GBE for fast wired networking, a rear USB 3.2 Gen2x2 Type-C, plus front Type-C and BIOS Flashback for stress-free updates.

Technical Specifications

Part Number 90-MXBRM0-A0UAYZ
EAN 4711581490222
Form Factor ATX
CPU Socket LGA1851 (Intel Core Ultra Series 2)
Chipset Intel B860
VRM 10+1+1+1+1 Phase, Dr.MOS (VCore + GT + SA)
Memory 4 x DDR5 DIMM, dual-channel, up to 8666+ MHz (OC), 256GB max, CUDIMM supported
PCIe Slots 1 x PCIe 5.0 x16 + 1 x PCIe 4.0 x16 (x4 mode) + 1 x M.2 Key E for WiFi
Storage 1 x Blazing M.2 PCIe Gen5 x4 + 2 x Hyper M.2 PCIe Gen4 x4 + 4 x SATA3 6GB/s
Graphics OuTPUt 1 x HDMI + 1 x DisplayPort (requires CPU with iGPU)
Rear USB 1 x USB 3.2 Gen2x2 Type-C + 6 x USB 3.2 Gen1 + 2 x USB 2.0
Front USB Headers 1 x USB 3.2 Gen1 Type-C + 2 x USB 3.2 Gen1 + 4 x USB 2.0
LAN Realtek 2.5GBE
Wireless Not included — optional via M.2 Key E slot
Audio Realtek ALC897 7.1-CH HD Audio with Nahimic Audio
Special Features BIOS Flashback, M.2 Bottom Heatsink, Post Status Checker

Frequently Asked Questions

Does this motherboard have onboard Wi-Fi or Bluetooth?
No. This is the non-WiFi B860 Pro RS revision. It includes an M.2 Key E slot so you can add an optional WiFi card, or step up to the B860 Pro RS WiFi for built-in Wi-Fi 6E and Bluetooth.
Which CPUs does it support?
Intel Core Ultra Series 2 desktop processors on the LGA1851 socket. The 10+1+1+1+1 Dr.MOS VRM is best suited to mainstream and mid-tier SKUs in the 65–105W TDP range.
Will I get full PCIe 5.0 speeds for my SSD and GPU?
Yes — the primary x16 slot is PCIe 5.0, and one M.2 socket runs at PCIe Gen5 x4 (Blazing M.2). The two additional M.2 sockets are Gen4 x4. Final speeds also depend on the CPU and storage device.
Can I display video without a discrete GPU?
Yes, but only if your CPU has integrated graphics. The HDMI and DisplayPort ouTPUts rely on the CPU’s iGPU — there are no graphics chips on the motherboard itself.
Singular Expert Insight
Choose this Pro RS over a Steel Legend or Z890 board if you want PCIe 5.0, DDR5 8666+ and Gen5 M.2 on a mid-range Core Ultra build without paying for premium VRMs you would not exercise. If you need built-in Wi-Fi 6E and Bluetooth out of the box, look at the B860 Pro RS WiFi instead. If you plan to overclock a flagship K-series CPU, an ASRock Z890 board is the more sensible upgrade.

Buyer's Guide

Buy it if
You’re building a mid-range LGA1851 system and want PCIe 5.0, DDR5 8666+ and a Gen5 M.2 slot at a sensible B-series price.
Skip it if
You need onboard Wi-Fi/Bluetooth out of the box, plan to overclock a flagship K-CPU, or want Thunderbolt 4 / 2.5G+ networking.
Also consider
B860 Pro RS WiFi for built-in Wi-Fi 6E + Bluetooth, or a Z890 board for richer VRMs and aggressive CPU overclocking.