Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX - Motherboard

ASRock B850M Pro-A brings AMD B850 power to the micro ATX segment, designed for Socket AM5 systems compatible with Ryzen 7000, 8000 and 9000 series processors.

This motherboard supports Socket AM5 CPUs from AMD and offers broad compatibility across three Ryzen generations, making it a future-ready choice for upgrades and new builds.

Memory performance is solid with four DIMM slots that accept DDR5-SDRAM in dual-channel configuration, supporting ECC and non-ECC unbuffered modules up to a total of 256 GB for demanding applications and multitasking.

Storage options are flexible: three M.2 slots (one PCIe 5.0 x4 and two PCIe 4.0 x4), four SATA III ports and support for up to seven drives overall. Hardware RAID 0, 1 and 10 are available for data protection and performance tuning.

Connectivity is comprehensive for its size, with USB 2.0, USB 3.2 Gen1 and Gen2 Type-A and Type-C ports, a 2.5 Gigabit Ethernet port driven by the Dragon RTL8125BG controller, HDMI 2.1 and DisplayPort 1.4 for up to 3840×2160 output, and a Realtek ALC897 audio codec providing 7.1-channel sound.

Cooling and build convenience are addressed with two CPU fan connectors, three chassis fan headers, an 8-pin EPS power connector, TPM and RGB LED header support, plus a standard 24-pin ATX power connector. The board measures 244 × 244 mm and fits micro ATX cases.

Use cases range from a compact high-performance gaming rig taking advantage of PCIe 5.0 NVMe drives and Ryzen CPU power, to a content-creation workstation with large DDR5 capacity and multiple storage devices, or a reliable small form factor office PC with hardware RAID and gigabit-plus networking.

• Socket AM5 for Ryzen 7000/8000/9000
• DDR5, 4 DIMM, up to 256 GB (ECC & Non-ECC)
• PCIe 5.0 M.2 support, 3x M.2 slots and 4x SATA III
• 2.5 Gb Ethernet (Dragon RTL8125BG) and HDMI 2.1
• Micro ATX form factor with robust I/O and fan headers