arkivoAPI
Menu

PC parts / Motherboards

ASRock B860 Challenger WiFi

ASRockMainstream motherboard

B860 Challenger WiFi

Released January 2026.4Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026Listed since 2026-03-09. The manual is dated December 2025. The job gives 2026-01 from ASRock's page, which could not be read. Search excerpts show retailer first listings in February and March 2026. The month is approximate. Last checked 15 October 2026.

CPU socket
LGA1851
Chipset
Intel B860
Form factor
ATX
M.2 slots
3

61 of 78 fields known.

Compare with another motherboardDownload JSONDownload CSVGet it from the API

At a glance

Ports

  • HDMI 2.1
  • USB-C USB 3.2 Gen 1
  • 6 USB-A USB 3.2 Gen 1
  • 2 USB-A USB 2.0
  • Ethernet (RJ45)
  • 3 3.5 mm audio
  • USB-C header
  • USB 3 header (19-pin)
  • 2 USB 2.0 header (9-pin)

All specs

SourceCalculated

General

Series
Challenger1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Manual title: B860 Challenger WiFi. Challenger is the ASRock line in the name.
Model numbers
B860 Challenger WiFi, 90-MXBUC0-A0UAYZ1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Manual title and specification chapter: B860 Challenger WiFi. The part number 90-MXBUC0-A0UAYZ is from Geizhals and PCPartPicker. The White edition has its own part number and is a separate model.3Retailer page25n.de/ASRock-B860-Challenger-WiFi-1851-ATX-HDMI-USB-C-DDR/25N36624Read 15 October 2026Manufacturer part number 90-MXBUC0-A0UAYZ.4Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026Manufacturer part number 90-MXBUC0-A0UAYZ.6Spec databasepcpartpicker.com/product/BKDnTW/asrock-b860-challenger-wifi-atx-lga1851-motherboard-b860-challenger-wifiRead 15 October 2026Part numbers: B860 Challenger WiFi and 90-MXBUC0-A0UAYZ.
GTIN / EAN
47115814941903Retailer page25n.de/ASRock-B860-Challenger-WiFi-1851-ATX-HDMI-USB-C-DDR/25N36624Read 15 October 2026EAN 4711581494190, manufacturer part number 90-MXBUC0-A0UAYZ. A search result for a French retailer lists the same EAN. The White edition has a different EAN.
Announced
Not available
Status
Available4Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026Listed with offers from many shops on 2026-10-15.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Segment
Mainstream4Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026Segment: Mainstream. ASRock Challenger is a budget line and not a Phantom Gaming, creator or workstation line.
Board revision
Not available

Platform

CPU socket
LGA18511Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026
Chipset
Intel B8601Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026
Supported processors
Intel Core Ultra (Series 2)1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports Intel Core Ultra Processors (Series 2) (LGA1851). The manual points to ASRock's website for the CPU support list. Read on 2026-10-15.
CPU overclocking
No7Press articlepugetsystems.com/labs/articles/z890-vs-b860-vs-h810Read 15 October 2026The article says Z890 supports CPU core and base clock overclocking and the B860 chipset only supports memory overclocking.

Board

Front and side, drawn to scale.

Form factor
ATX1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2 and the package contents: ATX Form Factor. The manual gives no millimetre size.
Board dimensions
Width244Height305mm(9.6 × 12 in)3Retailer page25n.de/ASRock-B860-Challenger-WiFi-1851-ATX-HDMI-USB-C-DDR/25N36624Read 15 October 2026The spec table lists width 30.5 cm and depth 24.4 cm, which is the ATX size of 244 mm by 305 mm. The retailer's general information block lists other sizes, which are packaging. ATX is stored as 244 by 305.
PCB layers
Not available
Back-connect design
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026The section 1.3 layout and 2.12 connector pages show the usual front-side connectors. PCPartPicker also says no back-connect connectors.6Spec databasepcpartpicker.com/product/BKDnTW/asrock-b860-challenger-wifi-atx-lga1851-motherboard-b860-challenger-wifiRead 15 October 2026Back-Connect Connectors: No.
RGB lighting on the board
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026The section 1.2 connector list has only the RGB and addressable LED headers. No on-board lighting is named.

Power delivery

Power stage layout
10+1+1+1+13Retailer page25n.de/ASRock-B860-Challenger-WiFi-1851-ATX-HDMI-USB-C-DDR/25N36624Read 15 October 2026Copy of ASRock's text: 10+1+1+1+1 Power Phase Design, with Dr.MOS MOSFET power stages. TweakTown, as seen in a search excerpt, writes 10+1+1 for the same board, which counts the rails differently. The maker's string is stored.
CPU core (Vcore) power stages
104Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026VRM row: 10+1+1+1+1 with 11 virtual CPU phases (2x5+1) and 10x MOSFETs for VCORE. Geizhals names no controller.5Reviewpcinq.com/asrock-b860-challenger-wifi-reviewRead 15 October 2026The review counts ten SiC623 integrated power stages for the CPU core, in a 14-phase 10+1+1+1+1 layout. It names no PWM controller.
Vcore power stage rating
Not available
VRM controller
Not available
CPU power connectors
8+8 pin1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 2 x 8 pin 12V power connectors (Hi-Density Power Connector) and the 24 pin ATX power connector.
Extra slot power connector
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026The section 1.2 and 1.3 connector lists have no extra slot power connector.

Memory

Memory type
DDR51Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: dual channel DDR5, 4 x DDR5 DIMM slots.
Memory slots
41Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026
Max memory
256GB1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: max. capacity of system memory 256GB.
Max memory speed (overclocked)
8,666MT/s1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports DDR5 non-ECC, un-buffered memory up to 8666+(OC). The manual names no CPU family or module setup. Core Ultra (Series 2) is the only family for the board. Geizhals writes max. DDR5-8666 OC.
ECC memory
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports DDR5 non-ECC, un-buffered memory.
CUDIMM support
Yes1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: Supports Clocked Unbuffered DIMM (CUDIMM), with no bypass-mode limit.

Expansion slots

Expansion slots
Physical slotElectrical lanesPCIe generationConnected toCount
PCIe x16165CPU1
PCIe x1644Chipset1
Source1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2 and 2.7: PCIE1 is a PCIe 5.0 x16 slot from the CPU in x16 mode. PCIE2 is a PCIe 4.0 x16 slot from the chipset that runs in x4 mode. The M.2 Key E socket of the installed Wi-Fi module is not listed.
Full-length PCIe slots
2
Fastest PCIe x16 slot generation
5

Storage

M.2 storage slots
SlotPCIe generationPCIe lanesConnected toLongest driveTakes SATA drivesHeatsink
M2_154CPUM.2 2280NoYes
M2_244ChipsetM.2 2280NoYes
M2_344ChipsetM.2 2280NoNo
Source1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2 and 2.15 to 2.17: M2_1 is a Blazing M.2 on the CPU, type 2280, PCIe Gen5x4. M2_2 is a Hyper M.2 on the chipset, types 2230/2242/2260/2280, PCIe Gen4x4. M2_3 is a Hyper M.2 on the chipset, type 2280, PCIe Gen4x4. The manual lists no SATA mode and PCInQ says all slots are NVMe only. M2_1 has a heatsink with a release button. M2_2 has a heatsink fixed with screws. M2_3 has no heatsink in the install guide. The manual names no lane sharing between the slots.
M.2 slots
3
PCIe 5.0 M.2 slots
1
SATA ports
41Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 4 x SATA3 6.0 Gb/s connectors.

Rear ports

Rear ports
TypeVersionCountMax link rate (Gbps)DP Alt Mode
HDMIHDMI 2.11Not availableNot available
USB-CUSB 3.2 Gen 115No
USB-AUSB 3.2 Gen 165Not available
USB-AUSB 2.020.48Not available
Ethernet (RJ45)Not available12.5Not available
3.5 mm audioNot available3Not availableNot available
Source1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2 and 1.4: 1 HDMI (HDMI 2.1, up to 4K 120Hz), 1 USB 3.2 Gen1 Type-C, 6 USB 3.2 Gen1 (USB32_1234, USB32_5 and USB32_6, where USB32_56 are Lightning Gaming Ports), 2 USB 2.0, 1 RJ-45 (2.5 Gigabit LAN), 3 HD audio jacks, a BIOS Flashback button and 2 antenna ports. The manual does not name the USB 3.2 Gen1 ports Type-A. The only Type-C is the one named, so the others are stored as Type-A. The graphics list names only HDMI, so the Type-C has no DisplayPort mode. The manual gives no USB power output.
Rear USB ports
9
Rear USB-C ports
1
Fastest rear USB port
5Gbps
Thunderbolt
Not available

Internal connectors

Internal USB headers
HeaderMax data rate (Gbps)HeadersFront ports served
USB-C header511
USB 3 header (19-pin)512
USB 2.0 header (9-pin)0.4824
Source1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 1 Front Panel Type C USB 3.2 Gen1 header, 1 USB 3.2 Gen1 header (2 ports) and 2 USB 2.0 headers (4 ports).
Front USB-C header speed
5Gbps
Fan headers
71Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 2 CPU fan connectors (4-pin), 4 chassis fan connectors (4-pin) and 1 AIO pump fan connector (4-pin). The block diagram says FAN x7.
ARGB headers
31Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 3 x addressable LED headers (5V, 3A total).
RGB headers
11Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 1 x RGB LED header (12V, 3A total).

Networking

Ethernet controllers
Realtek RTL81251Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: Dragon RTL8125BG, 2.5 Gigabit LAN. The suffix BG is left out.
Ethernet ports
1
Ethernet speed
2.5Gbps
Wi-Fi included
Yes1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Sections 1.2 and 1.6: the board comes with an 802.11be Wi-Fi 7 plus Bluetooth module, in the M.2 Key E socket.
Wi-Fi standard
Wi-Fi 71Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports IEEE 802.11a/b/g/n/ac/ax/be.
Wi-Fi bands
2.4 GHz, 5 GHz, 6 GHz1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports the 2.4GHz/5GHz/6GHz frequency bands. The 6 GHz band depends on country regulations.
Max Wi-Fi channel width
160MHz1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: supports 160MHz channel bandwidth with the 6GHz frequency band.
Wi-Fi module
Realtek RTL8922AE5Reviewpcinq.com/asrock-b860-challenger-wifi-reviewRead 15 October 2026Component list: Realtek RTL8922AE on an AzureWave AW-EB601NF module, Wi-Fi 7 and Bluetooth 5.4. The manual block diagram shows AW-EB601NF on the Key E socket. No other source names the chip.
Bluetooth
5.41Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Sections 1.2 and 1.6: supports Bluetooth 5.4.

Audio

Audio codec
Realtek ALC8971Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.2: 7.1 CH HD Audio (Realtek ALC897 Audio Codec).
DAC chip
Not available

Features

BIOS flashback
Yes1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Sections 1.4 and 2.14: a BIOS Flashback button on the rear panel and a USB BIOS Flashback port.
Clear CMOS button (rear)
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 2.11: Clear CMOS is a 2-pin jumper (CLRMOS1). The rear panel list has no clear CMOS button.
POST code display
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 2.13: Post Status Checker with four status LEDs for CPU, DRAM, VGA and BOOT. It is not a two-digit display.
Power button on the board
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 2.14: the motherboard has one smart button, the BIOS Flashback button on the rear panel. The layout lists no power or reset button on the board.
Dual BIOS
No1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026The specification chapter lists no second BIOS chip. Dual BIOS is not stated.
Pre-installed I/O shield
Yes4Spec databasegeizhals.de/asrock-b860-challenger-wifi-90-mxbuc0-a0uayz-a3751620.htmlRead 15 October 2026Features: integrated I/O shield.
Tool-free features
Tool-free M.2 latch, Tool-free M.2 heatsink1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Sections 2.15 to 2.17: the M.2 SSDs are secured by turning a nut lock, and the M2_1 heatsink comes off with a release button. The antennas screw on, so there is no push-on antenna connector. The manual names no PCIe release.

Measured

We could not find any of these 3 fields. Show them
VRM temperature under CPU load
Not available
Power draw idle
Not available
Power draw CPU stress
Not available

In the box

In the box
2 x Serial ATA (SATA) Data Cables, 2 x ASRock WiFi 2.4/5/6 GHz Antennas, 1 x Screw for M.2 Socket, 1 x Standoff for M.2 Socket1Owner's manualdownload.asrock.com/Manual/B860%20Challenger%20WiFi.pdfRead 15 October 2026Section 1.1. The manual marks the cables, antennas, screw and standoff as optional. The motherboard itself is not listed here.

Warranty

Manufacturer warranty (source market)
3years5Reviewpcinq.com/asrock-b860-challenger-wifi-reviewRead 15 October 2026Spec table: warranty 3 years. The review does not name the market.

Compare with

Pick a motherboard to see both side by side. Differences are marked yellow.

More motherboard comparisons

Sources

We read 7 sources for this motherboard. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 39 fields
  2. Read 15 October 2026Backs 2 fields
  3. Read 15 October 2026Backs 4 fields
  4. Read 15 October 2026Backs 6 fields
  5. Read 15 October 2026Backs 3 fields
  6. Read 15 October 2026Backs 2 fields
  7. Read 15 October 2026Backs 1 field

See a wrong value? Tell us and name the field.