MSI PRO B550M-P M-ATX Motherboard

The MSI PRO B550M-P is a Micro-ATX motherboard built on AMD's B550 chipset and designed for the AM4 platform. It supports AMD Ryzen 5000 Series, Ryzen 5000 G-Series, Ryzen 4000 G-Series, Ryzen 3000 Series, and Ryzen 3000 G-Series processors, making it a versatile foundation for productivity-focused desktop builds. Memory performance is a highlight of this board. Two DDR4 DIMM slots support dual-channel operation with a maximum capacity of 128 GB. Speeds are configurable via A-XMP OC mode, reaching up to 4400+ MT/s in a single-rank, single-DIMM-per-channel configuration. The board supports non-ECC, unbuffered memory modules only, and JEDEC standard speeds are also supported for plug-and-play compatibility. Storage and expansion connectivity are equally capable. The primary PCIe x16 slot runs at PCIe 4.0 bandwidth from the CPU, delivering maximum throughput for discrete graphics cards. An onboard Lightning Gen4 x4 M.2 slot (sourced from the CPU) enables high-speed NVMe SSD installation. Two additional PCIe 3.0 x1 slots from the chipset handle expansion cards. For display output, the back panel provides VGA, DisplayPort, and HDMI ports for use with compatible Ryzen G-Series processors featuring integrated graphics. Assembly is simplified through MSI's EZ DIY features including EZ Debug LED indicators, which pinpoint CPU, DRAM, VGA, or boot device issues without a POST code display, and EZ Mounting for straightforward M.2 installation. Internal headers include two addressable ARGB V2 connectors and two standard RGB LED connectors for lighting customisation, alongside one CPU fan header and two system fan headers. USB connectivity is provided through both back panel and internal headers: the back panel carries USB 2.0 and USB 5Gbps Type-A ports, while internal headers add four USB 2.0 ports, two USB 5Gbps Type-A ports, and one USB 5Gbps Type-C port. A TPM 2.0 pin header is also included for security compliance. MSI Center software consolidates fan management (via Cooling Wizard), network prioritisation (via AI LAN Manager), and system tuning in a single interface. Audio Boost provides a dedicated audio circuit for improved signal isolation. MSI backs this motherboard with a 3-year warranty. Verifiable Specifications: - Form Factor: Micro-ATX - Chipset: AMD B550 - Socket: AM4 - Supported CPUs: Ryzen 5000, 5000G, 4000G, 3000, 3000G Series - Memory: 2x DDR4 DIMM, dual-channel, max 128 GB, up to 4400+ MT/s (OC via A-XMP) - Expansion: 1x PCIe 4.0 x16 (CPU), 2x PCIe 3.0 x1 (Chipset) - M.2: 1x Lightning Gen4 x4 (CPU) - Display Output: 1x VGA, 1x DisplayPort, 1x HDMI - Back Panel USB: USB 2.0, USB 5Gbps Type-A - Internal USB Headers: 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 5Gbps Type-C - RGB Headers: 2x ARGB V2, 2x standard RGB - TPM: TPM 2.0 pin header - Warranty: 3 Years