The technical data …
| Manufacturer | ASRock |
| Description | B850 Rock WiFi 7 |
| Model number | 90-MXBU20-A0UAYZ |
| Type / 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 43 mm (71 mm radius). The total size of the ATX board is 305 x 244 mm. |
| Slots | +++++ 1x PCIe 5.0×16, 1x PCIe 4.0×4, 2x PCIe 4.0×1, 1x M.2 with PCIe 5.0 x4, 1x M.2 with PCIe 4.0 x4, 1x M.2 with PCIe 4.0 x2, 4x DDR5 up to 8000MT/s with XMP/EXPO support, currently up to 256GB of RAM total. |
| Connection I/O Panel | ++++ 1x RJ45 LAN 10/100/1000/2500 Mbps Base-T Ethernet (Realtek Dragon RTL8125BG), 1x USB-C 3.2 Gen 2 (10 Gb/s), 1x USB-A 3.2 Gen2 (10 Gb/s), 2x USB-A 3.2 Gen1 (5 Gb/s), 4x USB-A 2.0 (480 Mb/s), 3x 3.5 mm jacks (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 5.0×16, 1x PCIe 4.0×16 (@x4 Mode), 4x SATA3 (6Gb/s), 1x Blazing M.2 PCIe 5.0×4 128Gb/s (Key M, 2280), 1x Hyper M.2 PCIe 4.0×4 64 Gb/s (Key M, 2280), 1x USB 3.2 Gen1 (5Gb/s, 1 Port, Typ-C) Header, 2x USB 3.2 Gen1 Header (4 Ports, 5Gb/s, Typ-A), 2x USB 2.0 Header (4 Ports, Typ-A), 3x 5V/3A ARGB Header, 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 manual, 2 SATA cables, 2 WiFi/Bluetooth antennas. |
| Miscellaneous | POST status LEDs, Wi-Fi 7 supports IEEE 802.11a/b/g/n/ac/ax/be 160MHz 2×2 as well as 2.4GHz, 5GHz, and 6GHz. Bluetooth 5.4. Windows 10 or later required. 7.1 HD audio with Realtek ALC897, BIOS Flashback (BIOS update without CPU). Clear CMOS jumper, quick-release clips for SSDs in M.2 slots. |
| Performance* | ++++ Benchmark Results
Benchmark results with the AMD Ryzen 5 7500F processor. Cinebench R23 scores 14,117 points in the multicore test. |
| Manual and Labeling | ++++ Well-placed, complete motherboard labeling. A quick start guide with instructions on proper CPU installation, memory installation, M.2 installation, etc., is included. |
ASRock B850 Rock WiFi 7 Layout, design and features …