MSI B450M-A Pro Max II DDR4 AMD Motherboard

The MSI B450M-A Pro Max II is a Micro-ATX motherboard built on the AMD B450 chipset and designed for the AM4 socket ecosystem. It supports a broad range of AMD Ryzen desktop processors — including Ryzen 1000, 2000, 3000, 4000 G-Series, 5000, and 5000 G-Series — as well as Athlon processors featuring Radeon Vega Graphics, making it a versatile platform for budget-conscious builders and system upgraders alike. Memory configuration centres on two DDR4 DIMM slots capable of holding up to 64 GB in dual-channel mode. Standard JEDEC speeds are supported from DDR4-2667, with A-XMP overclocking profiles extending headroom up to DDR4-4133. The board accepts unbuffered non-ECC modules and also accommodates ECC UDIMM modules, though those operate in non-ECC mode. Storage options include a single M.2 slot fed directly from the CPU at up to PCIe 3.0 x4 or SATA speeds, supporting 2242, 2260, and 2280 form factors. Four SATA 6 Gb/s ports round out storage connectivity, and RAID 0, RAID 1, and RAID 10 configurations are available across those SATA devices. Networking stands out with a Realtek RTL8125 controller delivering 2.5 Gbps wired LAN — a meaningful upgrade over standard Gigabit solutions found on competing B450 boards. Audio is handled by a Realtek ALC897 codec outputting 7.1-channel High Definition Audio. Display outputs consist of one HDMI 1.4 port (maximum 4K at 24 Hz) and one DVI-D port (maximum 1920×1200 at 60 Hz), both dependent on a processor with integrated graphics. For expansion, the board provides one PCIe 3.0 x16 slot from the CPU and one PCIe 2.0 x1 slot from the chipset. USB connectivity spans rear-panel ports (4× USB 3.2 Gen 1 Type-A and 2× USB 2.0) and front-panel headers (2× USB 3.2 Gen 1 and 4× USB 2.0). A TPM 2.0 header and chassis intrusion connector are included internally. The board carries a 3-year manufacturer warranty and measures 200 mm × 236 mm in the standard Micro-ATX footprint. Verified Specifications: • Chipset: AMD B450 • Socket: AM4 • Form Factor: Micro-ATX (200 mm × 236 mm) • Memory: 2× DDR4 DIMM, max 64 GB, dual-channel, up to DDR4-4133 (A-XMP OC) • Storage: 1× M.2 (PCIe 3.0 x4 / SATA, 2242/2260/2280); 4× SATA 6 Gb/s; RAID 0/1/10 • Expansion: 1× PCIe 3.0 x16 (CPU); 1× PCIe 2.0 x1 (Chipset) • Display: 1× HDMI 1.4 (4K/24 Hz); 1× DVI-D (1920×1200/60 Hz) • LAN: Realtek RTL8125 2.5 Gbps • Audio: Realtek ALC897, 7.1-channel HD Audio • USB (Rear): 4× USB 3.2 Gen 1 Type-A; 2× USB 2.0 • USB (Front Headers): 2× USB 3.2 Gen 1; 4× USB 2.0 • OS Support: Windows 11 64-bit, Windows 10 64-bit • Warranty: 3 Years