MSI MPG B550 Gaming Carbon Wifi DDR4 AMD Motherboard

The MSI MPG B550 Gaming Carbon WiFi is a full-size ATX motherboard (12 in. x 9.6 in. / 30.4 cm x 24.4 cm) built on the AMD B550 chipset for AM4-socket 3rd Gen AMD Ryzen processors, with BIOS-update support for select future Ryzen generations. Its primary PCIe 4.0/3.0 x16 slot pairs with a dedicated Lightning Gen 4 M.2 slot (M2_1, sourced directly from the CPU) capable of up to 64 Gb/s transfer, covered by MSI's M.2 Shield Frozr thermal solution to keep NVMe drives at consistent speeds under sustained load. Power delivery is handled by a 12+2+1 phase digital VRM fed by both an 8-pin and an auxiliary 4-pin ATX 12V connector, supported by MSI Core Boost technology for precise current delivery to multi-core processors. Four DDR4 DIMM slots accept up to 128 GB of unbuffered memory, with JEDEC speeds up to 3200 MHz and A-XMP overclocking profiles reaching 4866 MHz in 1DPC 1R configurations. Connectivity is a highlight: the onboard Intel Wi-Fi 6 AX200 module delivers 802.11ax across 2.4 GHz and 5 GHz bands (160 MHz channel, up to 2.4 Gbps) with MU-MIMO TX/RX and Bluetooth 5.1. Wired networking uses a Realtek RTL8125B 2.5 Gbps LAN controller. USB throughput spans from legacy 2.0 to USB 3.2 Gen 2 (10 Gbps) Type-A and Type-C ports on the rear panel. Storage options include six SATA 6 Gb/s ports and two M.2 Key-M slots. RAID 0, 1, and 10 are supported for SATA devices; RAID 0 and 1 for M.2 NVMe. Audio is served by a Realtek ALC1200 codec delivering 7.1-channel high-definition output with S/PDIF optical. The board's MYSTIC LIGHT system supports 16.8 million colours across 29 effects via one 4-pin RGB header and two 3-pin RAINBOW headers, plus a dedicated CORSAIR RGB header. Fan management covers up to six 4-pin system fan headers and one dedicated water-pump header (up to 3 A), all controllable through Total Fan Control in BIOS or software. An EZ Debug LED array and Flash BIOS Button (functions without CPU or RAM installed) simplify troubleshooting and BIOS recovery. The NUVOTON NCT6687-R chip handles hardware monitoring for CPU, system, and chipset temperatures plus fan speeds. Verifiable Specifications: - Chipset: AMD B550 - Socket: AM4 - Form Factor: ATX, 12 in. x 9.6 in. (30.4 cm x 24.4 cm) - Memory: 4x DDR4 DIMM, up to 128 GB; JEDEC up to 3200 MHz; A-XMP OC up to 4866 MHz (1DPC 1R) - Expansion: 1x PCIe 4.0/3.0 x16, 1x PCIe 3.0 x16 (x4 speed), 3x PCIe 3.0 x1 - Storage: 6x SATA 6 Gb/s, 2x M.2 Key-M (M2_1: PCIe 4.0/3.0 x4 or SATA; M2_2: PCIe 3.0 x4) - LAN: Realtek RTL8125B 2.5 Gbps - Wireless: Intel Wi-Fi 6 AX200, 802.11ax, up to 2.4 Gbps, Bluetooth 5.1 - Audio: Realtek ALC1200, 7.1-channel HD, S/PDIF output - USB (rear): 2x USB 3.2 Gen 2 10 Gbps (Type-A + Type-C), 2x USB 3.2 Gen 1 5 Gbps Type-A, 4x USB 2.0 Type-A - VRM: 12+2+1 digital phases, 8-pin + 4-pin ATX 12V - RGB: 1x 4-pin RGB, 2x 3-pin RAINBOW, 1x CORSAIR RGB header - I/O Controller: NUVOTON NCT6687-R - Warranty: 3 years