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ASRock B860M Challenger WiFi White LGA1851 Micro ATX Motherboard DDR5 PCIe 5.0 3x M.2 2.5GbE Wi-Fi 7

Brand:
ASRock
ASRock B860M Challenger WiFi White LGA1851 mATX DDR5 Wi-Fi 7
ASRock B860M Challenger WiFi White LGA1851 Micro ATX Motherboard DDR5 PCIe 5.0 3x M.2 2.5GbE Wi-Fi 7
€192.55 inc. VAT
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90-MXBUQ0-A0UAYZ
€161.81 €179.79
€192.55 inc. VAT
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CPU Type
Intel Ultra 5, Intel Ultra 7, Intel Ultra 9
Product Code
04:591063
EAN Code
4711581494619
Manufacturer
ASRock

Quick Specs

Socket & Chipset
LGA1851 · Intel B860
Memory
4x DDR5 · up to 256GB · 8666+ (OC)
Expansion & Storage
PCIe 5.0 x16 · 3x M.2 (1x Gen5)
Connectivity
2.5GbE · Wi-Fi 7 · BT 5.4
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ASRock B860M Challenger WiFi White

A compact white Micro ATX board for Intel Core Ultra (Series 2) with PCIe 5.0 graphics and Gen5 M.2, four DDR5 slots, 2.5GbE and Wi-Fi 7.
Intel B860 · LGA1851PCIe 5.0 x16 + Gen5 M.24x DDR5 · CUDIMM2.5GbE + Wi-Fi 7

The ASRock B860M Challenger WiFi White (part number 90-MXBUQ0-A0UAYZ) is an Intel B860 Micro ATX motherboard for Core Ultra processors (Series 2) on Socket LGA1851, designed for compact gaming and productivity PCs with a white theme. A 10+1+1+1+1 phase design with Dr.MOS feeds the CPU, four DDR5 slots support up to 256GB and CUDIMM modules, and a pre-installed I/O shield simplifies the build. PCIe 5.0 is available for both the graphics card and the first M.2 SSD.

Compatibility Note: Supports Intel Core Ultra processors (Series 2, LGA1851) only — 12th to 14th Gen LGA1700 CPUs do not fit. The rear panel has a single HDMI 2.1 output for the CPU graphics. Wi-Fi 7 requires Windows 11.
Best For
✓ Compact Core Ultra 200S gaming PCs
✓ Micro ATX and small-tower builds
✓ PCIe 5.0 graphics and Gen5 SSD
✓ Home office and study PCs
✓ White-themed builds
✓ Wi-Fi 7 without add-in cards

Key Features

 
PCIe 5.0 in Micro ATX
A CPU-connected PCIe 5.0 x16 slot and a Blazing M.2 socket at Gen5 x4 (128 Gb/s), plus two Hyper M.2 Gen4 x4 sockets and four SATA ports with RAID 0/1/5/10.
 
DDR5 up to 8666+ MHz
Four DDR5 slots with CUDIMM support and XMP 3.0; 1DPC 1R modules reach 8666+ MHz (OC) and up to 256GB is supported with all four slots filled.
 
Wi-Fi 7 and 2.5GbE
A 2x2 802.11be module with Bluetooth 5.4 and two antennas, plus Realtek Dragon RTL8125BG 2.5 Gigabit LAN with traffic-priority software.
 
Easy Build Features
Pre-installed I/O shield, Post Status Checker LEDs, ASRock Auto Driver Installer, Lightning Gaming USB ports and headers for 2 CPU fans, 3 chassis fans and an AIO pump.

Technical Specifications

Identification
Part Number 90-MXBUQ0-A0UAYZ
EAN / GTIN 4711581494619
Brand / Model ASRock B860M Challenger WiFi White
Colour White
Platform
CPU Support Intel Core Ultra Processors (Series 2), Socket LGA1851
Chipset Intel B860
Power Design 10+1+1+1+1 power phase, Dr.MOS for VCore + GT + SA
BIOS 256Mb AMI UEFI
Memory
Slots 4x DDR5 DIMM, dual channel
Speed / Capacity Up to 8666+ MHz (OC), 5600 MHz native · max 256GB
Type DDR5 non-ECC un-buffered · CUDIMM · XMP 3.0
Expansion
PCIe Slots 1x PCIe 5.0 x16 (CPU) · 1x PCIe 4.0 x4 (chipset)
M.2 Key E 1x 2230 for Wi-Fi/BT module (PCIe + CNVio/CNVio2)
Storage
M.2 M2_1: 2280 PCIe Gen5 x4 (CPU) · M2_2: 2230-2280 PCIe Gen4 x4 · M2_3: 2280 PCIe Gen4 x4
SATA 4x SATA3 6 Gb/s
RAID RAID 0/1/5/10 SATA · Intel VMD
Networking & Audio
LAN 1x 2.5GbE Realtek Dragon RTL8125BG
Wireless 802.11be 2x2 Wi-Fi 7 (2.4/5/6 GHz) + Bluetooth 5.4
Audio 7.1 CH HD Audio, Realtek ALC897 · Nahimic
Rear I/O
Ports 1x HDMI 2.1 (4K 120Hz) · 1x USB 3.2 Gen1 Type-C · 3x USB 3.2 Gen1 Type-A (2 Lightning Gaming Ports) · 2x USB 2.0 · 1x RJ-45 · 2x antenna · 3x audio jacks
Internal Headers 1x front USB 3.2 Gen1 Type-C · 1x USB 3.2 Gen1 · 2x USB 2.0 · 2x CPU fan · 3x chassis fan · AIO pump · 1x RGB + 3x ARGB · SPI TPM
Physical
Form Factor Micro ATX, 24.4 x 24.4 cm, pre-installed I/O shield
Power Connectors 1x 24-pin ATX + 1x 8-pin + 1x 4-pin 12V
In the Box 2x SATA cables, 2x Wi-Fi antennas
OS Windows 11 64-bit (Wi-Fi 7: Windows 11 only)

Frequently Asked Questions

Which processors does the B860M Challenger WiFi White support?
Intel Core Ultra processors (Series 2) for Socket LGA1851, such as the Core Ultra 5 245K, Core Ultra 7 265K and Core Ultra 9 285K. Older 12th-14th Gen LGA1700 processors are not compatible.
Can I overclock the CPU on a B860 board?
B860 does not support CPU multiplier overclocking; memory overclocking via XMP 3.0 is supported, with DDR5 up to 8666+ MHz on one module per channel. For CPU overclocking, a Z890 board is required.
How many monitors can I connect without a graphics card?
The rear panel provides one HDMI 2.1 output (4K 120Hz) from the CPU graphics. For multiple displays, install a graphics card in the PCIe 5.0 x16 slot.
What do I need to know before buying?
CPU, cooler, DDR5 memory and SSDs are sold separately. The board is Micro ATX (24.4 x 24.4 cm), so check that your case supports mATX, and note that Wi-Fi 7 is supported under Windows 11 only.
Singular Expert Insight
The B860M Challenger WiFi White suits a compact Core Ultra 200S build that still wants current connectivity: PCIe 5.0 for the GPU and SSD, Wi-Fi 7 and four DDR5 slots in a Micro ATX footprint. It is not an overclocking board; if you want to tune a K-series CPU, choose a Z890 model instead.
✓ Buy it if you are building a Micro ATX Core Ultra 200S PC and want Wi-Fi 7 and a Gen5 SSD slot.
✕ Skip it if you want CPU overclocking (needs Z890) or several display outputs from the CPU graphics.
→ Also consider ASRock B860M Challenger WiFi for the black version, or an AM5 board such as the X870 Challenger WiFi for a Ryzen build.

Features - ASRock - 90-MXBUQ0-A0UAYZ

CPU Socket
  • Socket 1851
Colour
white
More Details
Product Code
04:591063
EAN Code
4711581494619
Manufacturer
ASRock
Technical specifications
CPU Type
  • Intel Ultra 5,
  • Intel Ultra 7,
  • Intel Ultra 9
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