ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5
ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5, photo 2
ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5, photo 3
ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5, photo 4
ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5, photo 5
ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5, photo 6
ASRock

ASRock B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5

SKU HC-961839MPN 90-MXBUP0-A0UAYZ

  • LGA1851
  • B860
  • Micro-ATX

Highlights

  • Intel LGA 1851 socket with B860 chipset
  • Four DDR5 DIMM slots up to 256 GB at 8666 MT/s OC
  • One PCIe 5.0 x16 and one PCIe 4.0 x4 expansion slot
  • Three M.2 slots: one PCIe 5.0 x4 and two PCIe 4.0 x4
  • Wi-Fi 7 and Bluetooth 5.4 with 2.5 GbE LAN
  • Six 4-pin PWM fan headers and VRM plus M.2 heatsinks

Key specs

Socket
LGA1851
Chipset
B860
Form factor
Micro-ATX
Memory
DDR5
Wi-Fi
Yes
CPU Socket
1851
All specifications
$119.99
  • ≈ 0.001555 BTC
  • ≈ 0.0524 ETH
  • ≈ 120.11 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Full manufacturer warranty
  • 30-day returns Unused items in original packaging
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Overview

A Micro-ATX motherboard built on the Intel B860 chipset for LGA 1851 processors. It suits gamers and builders who want modern connectivity without CPU overclocking.

Board Layout and Power

The Micro-ATX form factor measures 24.4 cm square and uses a 10+1+1+1+1 phase VRM design. CPU power connects through one 8-pin and one 4-pin header. An integrated I/O shield simplifies installation.

Memory and Storage

Four DIMM slots support up to 256 GB of DDR5 CUDIMM or UDIMM modules. Standard speed is 5600 MT/s with overclocked profiles up to 8666 MT/s via Intel XMP 3.0 and AMD EXPO. Storage includes three M.2 sockets and four SATA 6 Gbps ports.

Connectivity and Networking

Rear I/O provides one USB 3.2 Type-C, three USB 3.2 Type-A, two USB 2.0 Type-A, HDMI, and three 3.5 mm audio jacks driven by a Realtek ALC897 codec. Networking features Wi-Fi 7, Bluetooth 5.4, and a single 2.5 Gbps Ethernet port.

Cooling and Extras

Six 4-pin PWM headers serve fans or pumps. Heatsinks cover the VRM area and M.2 slots. Internal headers include one USB 3.2 Type-C, one USB 3.2 Type-A, two USB 2.0, RGB and digital RGB connectors, front-panel audio, and an SPI TPM header.

B860M Challenger WiFi Motherboard Socket 1851 Intel B860 mATX DDR5 specifications

General
BrandASRock
Manufacturer part no.90-MXBUP0-A0UAYZ
EAN4711581494602
Form Factor
Motherboard Form FactorMicro-ATX
CPU
CPU ManufacturerIntel
CPU Socket1851
Power Specifications
Power Stages (VRMs)10+1+1+1+1
Motherboard
BIOS Flashback ButtonNo
Clear CMOS ButtonNo
Motherboard ChipsetIntel B860
Motherboard FeaturesDebug LEDs, M.2 Quick Release
Dual BIOSNo
Built-In I/O ShieldYes
Memory
Max. Memory256 GB
Memory TypeDDR5
Memory Form FactorDIMM
System Memory SubtypeCUDIMM, UDIMM
Max. Memory Speed (Standard)5600 MT/s
Max. Memory Speed (OC)8666 MT/s
ECC SupportNo
Memory slots4x
Performance ProfileAMD EXPO, Intel XMP 3.0
Wi-Fi & LAN
LANYes
LAN Ports1x 2.5 Gbit/s
Wi-Fi / BluetoothYes
Wi-Fi StandardWi-Fi 7
Bluetooth Standard5.4
Cooling
BackplateNo
M.2 HeatsinksYes
VRM HeatsinksYes
Internal Ports
CPU Power Supply1x 4-Pin + 1x 8-Pin
USB 3.0 / 3.1 / 3.2 (internal) Type C Header1
USB 3.0 / 3.1 / 3.2 (internal) Type C Possible Ports1
Internal Ports (continued)
USB 3.0 (internal) Header1
USB 3.0 (internal) Possible Ports1
USB 2.0 (internal) Header2
USB 2.0 (internal) Possible Ports4
RGB / LED connectors1x RGB (4-Pin 5050 12VGRB), 3x Digital RGB (3-Pin 5VDG)
Front Panel Audio HeaderYes
SPI TPM HeaderYes
External Ports
USB 3.2 (external) Type C1
USB 3.2 (external) Type A3
USB 2.0 (external) Type A2
Display ConnectorsHDMI (1x)
Audio outputs3.5 mm jack (total) 3x
Storage Ports
M.2 PCIe 4.0 x42
M.2 PCIe 5.0 x41
M.2 E-Key1
SATA 6G (internal)4
Expansion Slots
PCIe x16 slots (total)1
PCIe x4 slots (total)1
PCIe 5.0 x16 mechanical slot1
PCIe 4.0 x4 mechanical slot1
Fan Header
4 Pin Fan Connectors6
Audio
SoundchipRealtek ALC897
Display
Display IncludedNo
Back Connect
Back ConnectNo
Water Cooling
WatercoolingNo
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Dimensions
Length / Depth24.4 mm
Width24.4 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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