The ASRock AB350M Pro4 is a motherboard with several unique features. It is built with ASRock Super Alloy components, including a premium 42A power choke, a Sapphire Black PCB, a high-density glass fabric PCB, and a 2oz copper PCB. It also features ASRock Ultra M.2 for high-speed storage and ASRock Full Spike Protection for safeguarding USB, audio, and LAN ports. The motherboard supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Vermeer, Cezanne, Renoir, Matisse, Picasso, Summit Ridge, Raven Ridge, and Pinnacle Ridge).
The memory support includes dual-channel DDR4 technology with four DDR4 DIMM slots. The supported memory configurations vary depending on the CPU model, ranging from DDR4 2133 to DDR4 3200+ (OC) for AMD Ryzen CPUs. The maximum system memory capacity is 64GB.
The motherboard has integrated graphics capabilities, supporting AMD Radeon Vega Series Graphics in Ryzen Series APUs and AMD Radeon R-Series Graphics in A-Series APUs. It provides multiple graphics output options, including D-Sub, DVI-D, and HDMI, with support for triple-monitor setups and resolutions up to 4K. It also supports audio features like 7.1 CH HD Audio with Content Protection, Premium Blu-ray Audio, and surge protection.
For connectivity, the motherboard offers a PCI Express 3.0 x16 slot (x16 mode) and a PCI Express 2.0 x16 slot (x4 mode) for AMD Ryzen CPUs, as well as corresponding slots for different AMD APUs and Athlon CPUs. It supports AMD Quad CrossFireX and CrossFireX for multi-GPU setups. Storage options include four SATA3 6.0 Gb/s connectors with RAID support and two M.2 sockets for high-speed storage modules.
The rear panel I/O features various ports, including PS/2 mouse and keyboard ports, D-Sub, DVI-D, and HDMI ports, USB 2.0 and USB 3.1 Gen1 ports (including a Type-C port), an RJ-45 LAN port, and HD audio jacks.
The motherboard comes with ASRock software utilities such as A-Tuning, RGB LED control, APP Charger, and XFast LAN. The UEFI BIOS includes features like Full HD UEFI, Instant Flash, and Easy RAID Installer. Hardware monitoring capabilities include temperature and fan speed sensors, as well as voltage monitoring.
The ASRock AB350M Pro4 has a micro ATX form factor with solid capacitor design, measuring 9.6 inches by 9.6 inches.