ASRock B550M-ITX/ac

The ASRock B550M‑ITX/ac is a compact Mini‑ITX motherboard based on the AMD B550 chipset for AM4 processors. It’s aimed at small gaming rigs and compact workstations — supporting Ryzen desktop CPUs (including G‑series APUs) while keeping a full set of modern I/O in a 17 × 17 cm board.

The board features a single PCIe 4.0 x16 slot for discrete GPUs, a Hyper M.2 slot with PCIe Gen4x4 support when used with a compatible CPU, four SATA3 ports and a range of USB ports including a rear USB‑C. Integrated wireless (802.11ac) and Bluetooth 4.2 plus Realtek Gigabit Ethernet provide flexible connectivity. A reinforced 8‑phase power design with premium 60A chokes helps maintain voltage stability under load.

This motherboard is well suited for small form‑factor gaming builds, HTPCs and compact workstations where NVMe storage, modern connectivity and AM4 CPU support are required in a very small footprint.

Specifications

• Socket: AM4 (supports Ryzen 3000, 4000 G‑Series, 5000 and corresponding G models) — check CPU support list.
• Chipset: AMD B550.
• Form factor: Mini‑ITX, 17.0 × 17.0 cm.
• Memory: 2× DDR4, supports up to DDR4‑4733+ (OC).
• Expansion slots: 1× PCIe 4.0 x16.
• M.2: 1× Hyper M.2 (2280) — PCIe Gen4x4 (with compatible CPU) and SATA3 support.
• SATA: 4× SATA3 6.0 Gb/s.
• Networking: Realtek Gigabit LAN; Wi‑Fi 802.11ac + Bluetooth 4.2 (module and antennas included).
• USB (including front panel): 6× USB 3.2 Gen1: 2× front, 3× rear Type‑A, 1× rear Type‑C.
• Audio: 7.1‑channel HD Audio (Realtek ALC887/897).
• Power delivery: 8‑phase CPU power design with premium 60A chokes.
• Video outputs: DisplayPort and HDMI (available when using APUs with integrated graphics).