The technical data …
| Manufacturer | ASRock |
| Description | B850M Challenger WiFi White |
| Model Number | 90-MXBU50-A0UAYZ |
| Typ / Chipset | AMD AM5 / B850 |
| Dimensions | ++++ 19 mm (45 mm radius) from the socket to the nearest electrolytic capacitor or component-see Fit for Fan. The distance to the nearest larger heatsink is approximately 29 mm (55 mm radius). The total size of the Micro-ATX board is 244 x 244 mm. |
| Slots | +++++ 1x PCIe 5.0×16, 1x PCIe 4.0×16 (x4 Mode), 1x PCIe 4.0×1, 1x M.2 with PCIe 5.0×4, 1x M.2 with PCIe 4.0×4, 1x M.2 with PCIe 4.0×1 (occupied by a Wi-Fi module), 4x DDR5 up to 8000MT/s with XMP/EXPO support, currently a maximum of 256GB of RAM total. |
| Connection I/O Panel | +++++ 1x RJ45 LAN 10/100/1000/2500 Mbps Base-T Ethernet (Realtek Dragon RTL8125BG), 4x USB-A 3.2 Gen 1 (5 Gb/s), 2x USB-A 2.0 (480 Mb/s), 3x 3.5 mm jack ports (1x mic, 1x headphone, 1x line-in), 1x HDMI 2.1 (up to 4K 120Hz HDR with HDCP 2.3), 2x antennas (2T2R) for Wi-Fi 7 and Bluetooth 5.4 (antennas included), 1x BIOS Flashback button. |
| Connection internal | +++++ 1x PCIe 5.0 x16, 1x PCIe 4.0 x16 (x4 mode), 4x SATA3 (6 Gb/s), 1x Blazing M.2 PCIe 5.0 x4 128 Gb/s (Key M, 2280), 1x Hyper M.2 PCIe 4.0 x4 64 Gb/s (Key M, 2280), 1x M.2 PCIe 4.0 x1 (Key E, Wi-Fi), 1x USB 3.2 Gen 1 (5 Gb/s, 1 port, Type-C) header, 2x USB 3.2 Gen 1 headers (4 ports, 5 Gb/s, Type-A), 2x USB 2.0 headers (4 ports, Type-A), 3x 5V/3A ARGB headers, 1x 12V/3A RGB header, 6x 4-pin PWM connectors for fans and water pumps (5x 3A, 1x 1A), 1x front audio header. |
| Scope of delivery | ++++ Motherboard, installation guide, 2 SATA cables, 2 WiFi/Bluetooth antennas. |
| Miscellaneous | POST status LEDs; Wi-Fi 7 supports IEEE 802.11a/b/g/n/ac/ax/be 160 MHz 2×2, as well as 2.4 GHz, 5 GHz, and 6 GHz. Bluetooth 5.4. Windows 10 or later required. 7.1 HD audio with Realtek ALC897, BIOS Flashback (BIOS update without a CPU). Clear CMOS jumper, quick-release clips for SSDs in M.2 slots. |
| Performance* | ++++ Benchmark Results
Benchmark results with the AMD Ryzen 5 9600X processor. CPU-Z Benchmark Crystal Disk Mark |
| Manual and Labeling | ++++ Well-placed, complete labeling on the motherboard. A quick start guide with instructions on proper CPU installation, memory installation, M.2 installation, etc., is included. |
ASRock B850M Challenger WiFi White Layout, design and features …

