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Asrock b860 pro rs Wi-Fi motherboard ddr5 lga 1851 atx

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Description

Item No. 0a7b0636-7c59-4646-8511-8fb518614db1
ASRock B860 Pro RS WiFi Motherboard Intel B860 DDR5 LGA 1851 ATX

Attributes

Motherboard Characteristics

  • Chipset Type: B860
  • Processor Socket: LGA 1851
  • RAM Clock Speed: Supports DDR5 non-ECC, un-buffered memory up to 8666+(OC)
  • RAM Slots: 4
  • RAM Technology: DDR5
  • Supported CPUs: Intel® Core™ Ultra Processors (Series 2) (LGA1851)

Network & Connectivity

  • Ethernet LAN: 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
  • Number of SATA: 4

Details

Singular Selected

ASRock B860 Pro RS WiFi ATX Motherboard

A full-size ATX board forIntel Core Ultra (Series 2) builds — PCIe 5.0 graphics, a Blazing PCIe 5.0 M.2 slot, two more PCIe 4.0 M.2 slots, Wi-Fi 6E and 2.5GBE, with the 10+1+1+1+1 Dr.MOS VRM and BIOS Flashback expected from the Race Sport (RS) line.
LGA1851 · Intel B860DDR5 8666+ MT/s OCPCIe 5.0 GPU + M.2USB-C 20GBps · Wi-Fi 6E

The ASRock B860 Pro RS WiFi is a feature-rich full-size ATX motherboard for Intel LGA1851 Core Ultra Processors (Series 2) on the Intel B860 chipset. It pairs a PCIe 5.0 x16 graphics slot with one Blazing M.2 PCIe 5.0 x4 slot for top-tier NVMe SSDs and two Hyper M.2 PCIe 4.0 x4 slots, plus four SATA 6GB/s ports, four DDR5 DIMM sockets up to 8666+ MT/s (OC) and a robust 10+1+1+1+1 phase Dr.MOS VRM (VCore + GT + SA). Connectivity is Generous: Realtek 2.5GBE wired LAN, Wi-Fi 6E (802.11axe) with Bluetooth, a rear USB 3.2 Gen 2x2 (20GBps) Type-C port, eight USB 3.2 Gen 1 ports, BIOS Flashback button and an M.2 bottom heatsink — premium builder amenities at a sensible B860 price point.

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 dual 8-pin EPS power inputs (a single 8-pin works; the second is recommended for high-power CPUs). Wi-Fi 6E (6GHz band) requires Windows 11 and a 6E-compatible router; availability of the 6GHz band depends on regional regulations.
Best For
✓ Full-ATXIntel Core Ultra (Series 2) builds
✓ Builders who want PCIe 5.0 GPU + PCIe 5.0 NVMe
✓ AI PC, productivity and mainstream gaming rigs
✓ Wi-Fi 6E + 2.5GBE in a single board

Key Features

 
Dual PCIe 5.0 (GPU + M.2)
A reinforced PCIe 5.0 x16 graphics slot plus one Blazing M.2 PCIe 5.0 x4 NVMe slot for full next-gen GPU and storage bandwidth, with two additional Hyper M.2 PCIe 4.0 x4 slots.
 
10+1+1+1+1 Dr.MOS VRM
A robust 14-phase Dr.MOS power design (VCore + GT + SA) delivers stable power for the latestIntel Core Ultra (Series 2) CPUs, with dual 8-pin EPS connectors for high-load workloads.
 
Wi-Fi 6E + 2.5GBE + USB-C 20GBps
Realtek 2.5GBE wired LAN, 802.11axe Wi-Fi 6E with Bluetooth, plus a rear USB 3.2 Gen 2x2 Type-C (20GBps) port for fast external storage and dock connectivity.
 
BIOS Flashback + M.2 Heatsink
Update BIOS without a CPU, RAM or GPU using the BIOS Flashback button. M.2 bottom heatsink helps cool the primary NVMe drive under sustained loads.

Technical Specifications

Part Number 90-MXBRK0-A0UAYZ
Form Factor ATX
Socket LGA1851 (Intel Core Ultra Processors Series 2)
Chipset Intel B860
VRM 10+1+1+1+1 Power Phase, Dr.MOS for VCore + GT + SA
Memory 4 x DDR5 DIMM, dual channel, up to 8666+ MT/s (OC), Intel XMP support, Non-ECC unbuffered
Onboard Graphics 1 x HDMI + 1 x DisplayPort — requires CPU with iGPU
PCIe Slots 1 x PCIe 5.0 x16 (CPU) + 1 x PCIe 4.0 x16 (chipset, x4 mode) + 1 x M.2 Key E (Wi-Fi module)
M.2 Slots 1 x Blazing M.2 PCIe 5.0 x4 (CPU, 2280, 128GB/s) + 2 x Hyper M.2 PCIe 4.0 x4 (chipset, 64GB/s)
SATA 4 x SATA 6GB/s
LAN Realtek 2.5GBE
Wireless 802.11axe Wi-Fi 6E module + Bluetooth
Audio Realtek ALC897 7.1-CH HD Audio + Nahimic Audio
Rear USB 1 x USB 3.2 Gen 2x2 Type-C (20GBps) + 6 x USB 3.2 Gen 1 + 2 x USB 2.0
Internal USB Headers 1 x USB 3.2 Gen 1 Type-C front + 2 x USB 3.2 Gen 1 + 4 x USB 2.0
Display OuTPUts HDMI + DisplayPort
Power Connectors 1 x 24-pin ATX + 2 x 8-pin EPS 12V (second is optional)
Special Features BIOS Flashback button, M.2 Bottom Heatsink, Post Status Checker, Polychrome RGB Sync
Operating System Windows 11 64-bit, Windows 10 64-bit
In the Box User manual, SATA cables, 2 x Wi-Fi 2.4/5/6 GHz antennas, M.2 screws
EAN 4711581490239

Frequently Asked Questions

Which CPUs does the B860 Pro RS WiFi support?
It supportsIntel Core Ultra Processors (Series 2) on the LGA1851 socket. Always check ASRock's CPU support list and update BIOS via the Flashback button if needed before installing a new CPU.
Is one of the M.2 slots PCIe 5.0?
Yes. The primary "Blazing" M.2 slot is PCIe 5.0 x4 (128GB/s), connected to the CPU. The other two Hyper M.2 slots are PCIe 4.0 x4 (64GB/s), so you can mix one PCIe 5.0 SSD with two PCIe 4.0 SSDs.
Do I need to plug in both 8-pin EPS connectors?
No. A single 8-pin EPS cable will work. The second 8-pin connector is optional and recommended for high-load CPUs and overclocking — most modern PSUs include two CPU power cables.
Does Wi-Fi 6E 6GHz work everywhere?
Wi-Fi 6 (5GHz / 2.4GHz) works everywhere. The 6GHz band of Wi-Fi 6E is supported on Windows 11 only and requires a 6GHz-capable router. Availability of the 6GHz band varies by country regulations.
Singular Expert Insight
Choose the B860 Pro RS WiFi if you want a full-ATXIntel Core Ultra (Series 2) board with both PCIe 5.0 GPU support and a PCIe 5.0 M.2 NVMe slot, plus Wi-Fi 6E and 2.5GBE — a strong all-rounder for productivity and mainstream gaming builds. If you only need basic features and budget is tight, the cheaper B860M Pro RS or B860 Pro-A (no Wi-Fi) work well. If you plan unlocked CPU overclocking or need richer rear I/O and Thunderbolt, step up to a Z890 board.

Buyer's Guide

Buy it if
You want a full-ATXIntel Core Ultra (Series 2) build with PCIe 5.0 GPU + PCIe 5.0 M.2, Wi-Fi 6E and 2.5GBE.
Skip it if
You need a more compact Micro ATX build, or a Z890 platform for unlocked overclocking and Thunderbolt 4.
Also consider
B860M Pro RS WiFi for mATX, B860 Pro-A for cheaper non-Wi-Fi, or a Z890 board for full overclocking.