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ASRock X870 Challenger WiFi White AM5 ATX Motherboard DDR5 PCIe 5.0 4x M.2 USB4 2.5GbE Wi-Fi 7

Brand:
ASRock
ASRock X870 Challenger WiFi White AM5 ATX DDR5 USB4 Wi-Fi 7
ASRock X870 Challenger WiFi White AM5 ATX Motherboard DDR5 PCIe 5.0 4x M.2 USB4 2.5GbE Wi-Fi 7
€296.1 inc. VAT
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90-MXBUL0-A0UAYZ
€248.82 €276.47
€296.10 inc. VAT
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CPU Type
AMD Ryzen
Product Code
04:591059
EAN Code
4711581493865
Manufacturer
ASRock

Quick Specs

Socket & Chipset
AM5 · AMD X870
Memory
4x DDR5 · up to 256GB · 8000+ (OC)
Expansion & Storage
PCIe 5.0 x16 · 4x M.2 (1x Gen5)
Connectivity
2.5GbE · Wi-Fi 7 · 2x USB4
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ASRock X870 Challenger WiFi White

A white-themed value AM5 ATX board with PCIe 5.0 graphics and Gen5 M.2, dual USB4, 2.5GbE and Wi-Fi 7 for Ryzen 9000/8000/7000.
AMD X870 · AM5PCIe 5.0 x16 + Gen5 M.22x USB4 40 Gb/s2.5GbE + Wi-Fi 7

The ASRock X870 Challenger WiFi White (part number 90-MXBUL0-A0UAYZ) is an AMD X870 ATX motherboard for Socket AM5 Ryzen 9000, 8000 and 7000 processors, built for mainstream gaming and everyday high-performance PCs in an all-white finish. It pairs a 16+2+1 phase design with 80A Dr.MOS and an 8-layer PCB with the core X870 features: PCIe 5.0 for the graphics card and first M.2 SSD, two USB4 Type-C ports, Wi-Fi 7 and 2.5 Gigabit LAN.

Compatibility Note: M2_2 shares PCIe Gen4 x4 with the rear USB4 ports: with M2_2 populated both run at x2, or M2_2 can be set to x4 in BIOS, which disables USB4. M2_4 runs at Gen4 x2. Ryzen 8000 (Phoenix) processors run PCIE1 at Gen4 x8/x4 and M2_1 at Gen4. Wi-Fi 7 requires Windows 11.
Best For
✓ Mainstream AM5 gaming PCs
✓ Ryzen 7 9700X / 9800X3D builds
✓ PCIe 5.0 graphics and Gen5 SSD
✓ Home office and streaming PCs
✓ White-themed builds
✓ USB4 external drives and docks

Key Features

 
PCIe 5.0 Graphics and Storage
A CPU-connected PCIe 5.0 x16 slot for the graphics card and a Blazing M.2 socket at PCIe Gen5 x4 (128 Gb/s), plus three more M.2 sockets for a total of four NVMe drives.
 
16+2+1 Phase, 80A Dr.MOS
Power stages for VCore, SOC and MISC under an enlarged heatsink armour, on an 8-layer PCB with a 512Mb BIOS and BIOS Flashback button.
 
Dual USB4 Type-C
Two rear USB4 ports at 40 Gb/s support external NVMe enclosures, docks and displays from the CPU graphics (up to 8K 30Hz), with 15W USB PD charging.
 
2.5GbE and Wi-Fi 7
Realtek Dragon RTL8125BG 2.5 Gigabit LAN with traffic-priority software, plus a 2x2 Wi-Fi 7 module (2.4/5/6 GHz, 160 MHz) with Bluetooth 5.4.

Technical Specifications

Identification
Part Number 90-MXBUL0-A0UAYZ
EAN / GTIN 4711581493865
Brand / Model ASRock X870 Challenger WiFi White
Colour White
Platform
CPU Support AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series
Chipset AMD X870
Power Design 16+2+1 power phase, 80A Dr.MOS for VCore + SOC + MISC
BIOS 512Mb AMI UEFI with BIOS Flashback button
Memory
Slots 4x DDR5 DIMM, dual channel
Speed / Capacity Up to 8000+ MHz (OC) · max 256GB
Type DDR5 ECC / non-ECC un-buffered · XMP and EXPO
Expansion
PCIe Slots 1x PCIe 5.0 x16 (CPU) · 1x PCIe 3.0 x16 (chipset, x2 mode)
M.2 Key E 1x 2230 for Wi-Fi/BT module
Storage
M.2 M2_1: 2280 PCIe Gen5 x4 (CPU) · M2_2: Gen4 x4 (CPU, shared with USB4) · M2_3: Gen4 x4 · M2_4: Gen4 x2
SATA 2x SATA3 6 Gb/s
RAID RAID 0/1 SATA · RAID 0/1/10 M.2 NVMe
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 (4K 120Hz) · 2x USB4 Type-C 40 Gb/s (PD 15W) · 2x USB 3.2 Gen2 Type-A (Lightning Gaming Ports) · 1x USB 3.2 Gen1 Type-A · 4x USB 2.0 · 1x RJ-45 · 2x antenna · BIOS Flashback · 3x audio jacks
Internal Headers 1x front USB 3.2 Gen1 Type-C · 2x 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 ATX, 30.5 x 24.4 cm, 8-layer PCB
Power Connectors 1x 24-pin ATX + 2x 8-pin 12V
In the Box 2x SATA cables, 2x Wi-Fi antennas
OS Windows 10 / 11 64-bit (Wi-Fi 7: Windows 11 only)

Frequently Asked Questions

What is the difference between the X870 and X870E Challenger WiFi?
The X870E model has a second chipset so all four M.2 sockets run at full x4 without sharing with USB4, plus 20+2+1 phases with 110A SPS, 5GbE, ALC4082 audio and more rear USB. The X870 Challenger WiFi keeps PCIe 5.0, USB4 and Wi-Fi 7 at a lower price.
Can I use four NVMe SSDs?
Yes, but M2_4 runs at Gen4 x2, and using M2_2 halves the USB4 bandwidth unless you switch M2_2 to x4 in BIOS and give up USB4. For three drives or fewer, use M2_1, M2_3 and M2_2 as needed.
Is it suitable for a Ryzen 9800X3D gaming PC?
Yes. The board supports all Socket AM5 Ryzen 9000 processors, including X3D models, with PCIe 5.0 x16 for the graphics card and DDR5 up to 8000+ MHz with EXPO.
What do I need to know before buying?
CPU, cooler, DDR5 memory and SSDs are sold separately. The on-board audio is Realtek ALC897 without optical out, and Wi-Fi 7 has no Windows 10 driver.
Singular Expert Insight
The X870 Challenger WiFi White is the practical AM5 choice for a single-GPU gaming or work PC: it keeps the features that matter most in 2026 — PCIe 5.0, Gen5 M.2, USB4 and Wi-Fi 7 — without paying for extra lanes you may never use. If you plan four fast SSDs or want 5GbE, the X870E Challenger WiFi is worth the upgrade.
✓ Buy it if you want PCIe 5.0, USB4 and Wi-Fi 7 on an AM5 build at a sensible price.
✕ Skip it if you need four full-speed M.2 drives alongside USB4, or optical audio out.
→ Also consider ASRock X870E Challenger WiFi White for four full-speed M.2 and 5GbE, or X870 Taichi Creator for dual PCIe 5.0 x8/x8 and 10GbE.

Features - ASRock - 90-MXBUL0-A0UAYZ

CPU Socket
  • Socket AM5
Colour
white
More Details
Product Code
04:591059
EAN Code
4711581493865
Manufacturer
ASRock
Technical specifications
CPU Type
  • AMD Ryzen
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