The ASRock B550M-ITX/AC motherboard, with the part number 90-MXBDH0-A0UAYZ, is a compact and feature-rich board designed for users aiming to build a high-performance small form factor (SFF) PC without compromising on power and efficiency. This mini-ITX motherboard is compatible with AMD Ryzen 3000, 4000 G-Series, and 5000 Series processors on the AM4 socket, making it versatile for a range of high-end gaming and productivity applications. Leveraging the B550 chipset, it supports PCI Express 4.0, offering double the bandwidth of PCI Express 3.0 for next-generation graphics cards and NVMe SSDs. Despite its small size, it includes a capable power delivery system and efficient heatsink design to maintain optimal performance and stability. The B550M-ITX/AC supports up to 64 GB of DDR4 memory over two slots, facilitating ample capacity and high speeds for demanding tasks and games. Additionally, it features dual M.2 slots for high-speed storage devices, one of which supports PCIe 4.0 x4 for top-tier SSD performance. Networking is a strong suit, with onboard Wi-Fi 6 and Bluetooth for wireless connectivity, plus a Gigabit Ethernet port for wired connections. Rear I/O USB ports, including Type-C, offer versatile peripheral connectivity options. A clear CMOS button also provides convenience for troubleshooting. The ASRock B550M-ITX/AC motherboard is an excellent choice for builders looking to maximize performance in a minimized footprint.