The ASRock B550M-ITX/AC mini-ITX AM4 motherboard empowers Ryzen 5000/4000/3000 series with 8-phase VRM for stable performance and DDR4 up to 4733+ MT/s OC across two slots. PCIe 4.0 x16 and Hyper M.2 Gen4x4 & SATA3 slot accelerate GPUs and NVMe SSDs, while 802.11ac Wi-Fi + BT 4.2, Gigabit LAN, and 6x USB 3.2 Gen1 (including Type-C) provide robust networking. Realtek ALC887/897 7.1 CH HD audio with Nahimic and DisplayPort/HDMI outputs deliver immersive setups, with RGB headers for LED customization. Premium 60A chokes, M.2 armor heatsink, and StoreMI technology enhance efficiency and longevity in compact builds. Ideal for SFF gaming PCs and HTPCs seeking PCIe 4.0 speeds, overclocking, and wireless freedom without excess size.