You don't need a full ATX board if your case is a compact mid-tower or you're building a small-form-factor rig. The ASUS Prime B650EM-A WiFi fits the mATX footprint (24.4 × 24.4 cm) without cutting corners on what matters.
Ryzen 9000, 8000, or 7000 series CPUs up to 170W TDP. DDR5 to 256GB with EXPO and AEMP support. PCIe 5.0 x16 for your GPU. Wi-Fi 6 plus Bluetooth 5.4 built in. Realtek 2.5Gb Ethernet when you need a wired line.
Three M.2 slots, four SATA ports, two DisplayPort outputs plus HDMI. Three Addressable RGB Gen 2 headers if you want the lights, or leave them off and nobody notices. VRM and M.2 heatsinks keep temps in check without a tower of fans.
The board that just works in a smaller case. Add to cart
| brand | ASUS |
| model | PRIME B650EM-A WIFI |
| socket | AM5 |
| chipset | AMD B650 |
| form_factor | mATX (24.4 cm x 24.4 cm) |
| memory_type | DDR5 |
| memory_max | 256GB |
| memory_slots | 4 x DIMM |
| memory_speed | Up to 8000+ MT/s (OC) |
| expansion_slots | 1x PCIe 5.0 x16, 1x PCIe 4.0 x16 (x1 mode) |
| storage_m2 | 3x M.2 slots (PCIe 5.0 x4, PCIe 4.0 x4, PCIe 4.0 x4) |
| storage_sata | 4x SATA 6 Gb/s |
| raid | RAID 0/1/5/10 (Ryzen 9000), RAID 0/1 (Ryzen 8000), RAID 0/1/10 (Ryzen 7000) |
| wireless | Wi-Fi 6 (802.11ax), 2.4/5 GHz |
| bluetooth | v5.4 |
| ethernet | Realtek 2.5Gb with ASUS LANGuard |
| audio | Realtek 7.1 Surround Sound HD Codec, 24-bit/192 kHz |
| rear_usb | 2x USB 10Gbps Type-A, 2x USB 5Gbps Type-A, 4x USB 2.0 Type-A |
| front_usb | 1x USB 5Gbps (Type-C), 2x USB 5Gbps, 4x USB 2.0 |
| graphics_output | 2x DisplayPort, 1x HDMI |
| rgb | 3x Addressable RGB Gen 2 headers, Aura Sync |
| os_support | Windows 11, Windows 10 64-bit |
| bios | 256 Mb Flash ROM, UEFI AMI |
