Hover to zoom · click for full imageCompact AMD B850 AM5 Micro-ATX motherboard with DDR5 up to 7600 MHz, PCIe 4.0, dual M.2, WiFi 6 and 2.5G LAN.
The Pulse B850M WIFI is a compact AMD B850 motherboard for the Socket AM5 platform, built for clean, dependable Ryzen builds in a Micro-ATX chassis. It supports Ryzen 9000, 8000 and 7000 Series processors and pairs them with fast DDR5 memory, PCIe 4.0 graphics and next-generation M.2 storage.
A 7+2+1 phase CPU power design rated at 60A per phase delivers stable current to high core-count Ryzen chips. Pre-installed VRM, M.2 and chipset heatsinks keep temperatures in check, and five 4-pin fan headers give you room to tune airflow across the whole system.
Four DIMM slots run dual-channel DDR5 up to 256GB (4x 64GB) at overclocked speeds up to 7600 MHz, with AMD EXPO and Intel XMP profiles supported. A PCIe 4.0 x16 slot drives the graphics card, backed by a secondary PCIe 4.0 x4 slot for add-in cards.
Two M.2 sockets cover a PCIe 5.0 x4 slot for the latest high-speed SSDs plus a PCIe 4.0 x4 slot, alongside four SATA 6Gb/s ports for additional drives.
Built-in WiFi 6 (802.11ax) and Bluetooth 5.3 handle wireless duties, while a Realtek RTL8125BG 2.5 Gigabit Ethernet port covers wired networking. Rear I/O includes two USB 3.2 Gen1 Type-A ports, six USB 2.0 ports, HDMI and DisplayPort outputs, and Realtek ALC897 5.1-channel HD audio.
| Specification | Detail |
|---|---|
| Brand | Sapphire |
| Model | Pulse B850M WIFI |
| Part Number | 52123-04-40G |
| Chipset | AMD B850 |
| CPU Socket | AMD AM5 |
| CPU Support | Ryzen 9000 / 8000 / 7000 Series |
| Form Factor | Micro-ATX (244 x 244 mm) |
| Memory | 4 x DIMM, Dual Channel DDR5, up to 256GB (4x 64GB) |
| Memory Speed | Up to 7600 MHz (OC), EXPO / XMP |
| VRM | 7+2+1 phase CPU power, 60A per phase |
| PCIe x16 | 1 x PCIe 4.0 x16 |
| Secondary PCIe | 1 x PCIe 4.0 x4 |
| M.2 Slots | 2 (1 x PCIe 5.0 x4, 1 x PCIe 4.0 x4) |
| SATA | 4 x SATA 6Gb/s |
| Rear USB | 2 x USB 3.2 Gen1 Type-A, 6 x USB 2.0 |
| USB Headers | 1 x USB 3.2 Gen1, 2 x USB 2.0 |
| LAN | Realtek RTL8125BG 2.5 Gigabit Ethernet |
| Wireless | WiFi 6 (802.11ax), Bluetooth 5.3 |
| Audio | Realtek ALC897 HD Audio, 5.1 Channel |
| Display Outputs | 1 x HDMI, 1 x DisplayPort |
| Cooling | VRM / M.2 / PCH heatsinks, 5 x 4-pin fan headers |
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