MSI MAG B550M Mortar Wifi DDR4 AMD Motherboard

The MSI MAG B550M Mortar WiFi is a Micro-ATX motherboard built on the AMD B550 chipset and AM4 socket, designed to support AMD Ryzen 5000 Series, Ryzen 3000 Series, and Ryzen 4000 G-Series desktop processors up to Ryzen 9. Note: this board is not compatible with the AMD Ryzen 5 3400G or Ryzen 3 3200G. For gamers and power users who need both speed and expandability in a compact form factor, the B550M Mortar WiFi delivers PCIe 4.0 support via its primary x16 slot and M.2 slot, enabling next-generation NVMe storage performance. The board features two M.2 slots and six SATA III ports, giving builders a flexible mix of high-speed and high-capacity storage options. The power subsystem uses an 8+2+1 Duet Rail Power System paired with Digital PWM, Core Boost, and DDR4 Boost technologies. An extended PWM heatsink with a choke thermal pad rated at 7 W/mK, combined with a 2 oz copper PCB layer, helps maintain stable thermal performance under sustained CPU load. Connectivity is a strong suit: onboard WiFi 6 (802.11ax) with OFDMA and MU-MIMO brings fast wireless networking, while a Realtek RTL8125B 2.5G wired LAN port serves users who prefer a cable connection. Rear USB includes one USB 3.2 Gen 2 Type-C, one USB 3.2 Gen 2 Type-A, two USB 3.2 Gen 1 Type-A, and two USB 2.0 ports, with additional front-panel headers for one USB 3.2 Gen 1 Type-C, two USB 3.2 Gen 1 Type-A, and four USB 2.0 ports. Display output options include one HDMI and one DisplayPort on the rear I/O for systems using AMD APUs. Audio is handled by a Realtek ALC1200/ALC1220P codec with a 5-jack analog array plus optical S/PDIF output. The pre-installed I/O shield simplifies case installation. Verified Specifications: - Socket: AM4 - Chipset: AMD B550 - Form Factor: Micro-ATX - CPU Support (max): Ryzen 9 (Ryzen 5000 / 3000 Series; Ryzen 4000 G-Series) - Memory: 4 x DIMM, DDR4 dual-channel, up to 128 GB; JEDEC up to 3200 MHz, OC up to 4400 MHz - PCIe x16 Slots: 2 | PCIe x1 Slots: 2 - M.2 Slots: 2 (primary supports Gen 4 x4) - SATA III: 6 ports - LAN: 1 x Realtek RTL8125B 2.5G - Wireless: WiFi 6 (802.11ax), MU-MIMO - Rear USB: 1x USB 3.2 Gen 2 Type-C, 1x USB 3.2 Gen 2 Type-A, 2x USB 3.2 Gen 1 Type-A, 2x USB 2.0 - Front USB Headers: 1x USB 3.2 Gen 1 Type-C, 2x USB 3.2 Gen 1 Type-A, 4x USB 2.0 - Audio: Realtek ALC1200/ALC1220P, 5-jack + Optical S/PDIF - Display Out: 1x HDMI, 1x DisplayPort - Multi-GPU: 2-Way AMD CrossFire (Steel Armor PCIe slots) - DirectX: 12 - OS Support: Windows 10 64-bit