ASRock B550 PRO4 ATX Motherboard

The ASRock B550 PRO4 delivers reliable performance for AMD Ryzen builds with comprehensive connectivity and expansion options. Built on the AMD B550 chipset with AM4 socket compatibility, this ATX motherboard supports 3rd Gen AMD Ryzen processors and future Ryzen CPUs.

Power Delivery and Memory

Featuring an 8 Power Phase Design with Digi Power and premium 50A power chokes, the B550 PRO4 provides stable power delivery for consistent system performance. The motherboard supports up to 128GB of DDR4 memory across four DIMM slots, with overclocking speeds reaching DDR4 4733+ MHz. The 2oz copper PCB construction ensures lower temperatures and improved energy efficiency during operation.

Expansion and Storage

PCIe 4.0 support delivers enhanced bandwidth for modern graphics cards and NVMe SSDs. The board includes one PCIe 4.0 x16 slot with reinforced steel construction, one PCIe 3.0 x16 slot for AMD CrossFireX multi-GPU configurations, and two PCIe 3.0 x1 slots. Storage options include six SATA III ports and dual M.2 slots - one Hyper M.2 socket supporting PCIe Gen4 x4 (22110 length support) and one M.2 socket capable of PCIe Gen3 x2 and SATA3 modes. M.2 armor heatsinks help maintain optimal SSD temperatures.

Connectivity

USB connectivity includes two USB 3.2 Gen2 ports (Type-A and Type-C) delivering 10 Gbps transfer speeds, six USB 3.2 Gen1 ports, and four USB 2.0 headers. Networking is handled by Gigabit LAN, with an additional M.2 Key E slot available for optional WiFi module installation. Graphics outputs include HDMI and D-Sub ports for integrated graphics support.

Audio and RGB

The Realtek ALC1200 audio codec provides 7.1 channel HD audio with Nahimic Audio enhancement. Nahimic technology includes Sound Tracker for 360-degree positional audio during gaming. Polychrome RGB lighting allows customization of onboard RGB LEDs and connected RGB accessories, with synchronization across compatible devices.

Additional Features

The Post Status Checker LED provides quick diagnostic feedback for CPU, DRAM, VGA, and boot status. XXL aluminum alloy heatsinks cool the MOSFET and chipset areas. The sapphire black PCB with high-density glass fabric construction offers protection against electrical shorts from humidity. Full Spike Protection safeguards sensitive components from voltage surges. AMD StoreMI technology combines SSD speed with HDD capacity for optimized storage performance.

Package includes two SATA data cables, M.2 mounting hardware, and comes with a 2-year replacement warranty.