MSI B450 Tomahawk Max II DDR4 AMD Motherboard

The MSI B450 Tomahawk Max II is an ATX form factor motherboard built on the AMD B450 chipset, designed for the AM4 socket. It supports 1st, 2nd, and 3rd Generation AMD Ryzen processors, including Ryzen with Radeon Vega Graphics and Athlon with Radeon Vega Graphics desktop CPUs, making it a versatile platform for a range of AMD builds. Memory capacity is a strong point: four DDR4 DIMM slots accommodate up to 128GB of dual-channel DDR4 memory (requires ComboPI 1.0.0.3-based or newer BIOS). JEDEC speeds top out at 2667 MHz, while A-XMP overclocked profiles reach up to 4133 MHz on Ryzen Gen3 R5/R7/R9 processors. Both non-ECC and ECC UDIMM modules are supported, with ECC running in non-ECC mode. For expansion, the board provides one PCIe 3.0 x16 slot (full x16 bandwidth with 1st–3rd Gen Ryzen), one PCIe 2.0 x16 slot operating at x4 mode, and three PCIe 2.0 x1 slots. Two-way AMD CrossFire multi-GPU configurations are supported. Storage options include six SATA 6Gb/s ports and one M.2 Key-M slot capable of PCIe 3.0 x4 or SATA, accommodating 2242, 2260, 2280, and 22110 form-factor drives. The B450 chipset natively supports RAID 0, RAID 1, and RAID 10 across SATA devices. Connectivity on the rear panel includes one USB 3.2 Gen 2 10Gbps Type-C port, one USB 3.2 Gen 2 10Gbps Type-A port, two USB 3.2 Gen 1 5Gbps Type-A ports (from the CPU), two USB 2.0 Type-A ports, a PS/2 combo port, Realtek 8111H Gigabit LAN, HD audio connectors, a DVI-D port (up to 1920×1200 @ 60Hz), and an HDMI 2.1 port (up to 4096×2160 @ 60Hz) — display outputs active only with compatible APU-class processors. Audio is handled by a Realtek ALC892/ALC897 codec delivering 7.1-channel high-definition audio. The board's Flash BIOS Button allows firmware updates from a USB drive without a CPU, memory, or GPU installed — a practical feature during platform upgrades. Internal headers include a 4-pin CPU fan, a 4-pin water-pump-fan connector, four 4-pin system fan headers, two 5050 12V RGB LED strip headers, a TPM connector, chassis intrusion connector, and a clear CMOS jumper. Verified Specifications: - Form Factor: ATX — 12 in. × 9.6 in. (30.5 cm × 24.4 cm), 9 mounting holes - Chipset: AMD B450 - Socket: AM4 (1st, 2nd, 3rd Gen Ryzen; Athlon with Radeon Vega Graphics) - Memory: 4 × DDR4 DIMM, up to 128GB; up to 4133 MHz (A-XMP OC, Ryzen Gen3) - Storage: 1 × M.2 (PCIe 3.0 x4 / SATA); 6 × SATA 6Gb/s; RAID 0/1/10 - PCIe: 1 × PCIe 3.0 x16; 1 × PCIe 2.0 x16 (x4 mode); 3 × PCIe 2.0 x1 - USB (rear): 1 × USB 3.2 Gen 2 Type-C, 1 × USB 3.2 Gen 2 Type-A, 2 × USB 3.2 Gen 1 Type-A, 2 × USB 2.0 Type-A - LAN: Realtek 8111H Gigabit - Audio: Realtek ALC892/ALC897, 7.1-ch HD Audio - Display: DVI-D (1920×1200 @ 60Hz), HDMI 2.1 (4096×2160 @ 60Hz) — APU only - Multi-GPU: 2-Way AMD CrossFire - OS Support: Windows 10 64-bit; Windows 7 64-bit (requires Pinnacle/Summit Ridge CPU) - Warranty: 3 Years (manufacturer stated)