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

ASRock B850M Pro RS (AMD B850, Socket AM5) arrives as a versatile micro‑ATX motherboard built for current and future AMD Ryzen platforms, offering compatibility with Ryzen 7000, 8000 and 9000 series CPUs on the Socket AM5 standard.

This compact black motherboard brings DDR5 support across four DIMM slots with dual‑channel operation and ECC/non‑ECC compatibility, allowing up to 256 GB of unbuffered memory for demanding multitasking and professional workloads.

Storage is flexible with three M.2 slots (one PCIe 5.0 x4 and two PCIe 4.0 x4, all up to 2280) plus four SATA III connectors, supporting up to seven drives in total and RAID 0/1/10 for performance or redundancy.

Expansion and connectivity are strong for a micro‑ATX board: one PCIe 5.0 x16 slot, one PCIe 4.0 x4 slot, multiple USB ports including USB‑C (USB 3.2 Gen2), HDMI 2.1 and DisplayPort 1.4 for up to 3840×2160 output, and a 2.5 Gb Ethernet port driven by the Dragon RTL8125BG controller.

Audio and system control are handled by a Realtek ALC897 7.1‑channel codec, multiple fan headers (two CPU, three chassis), RGB LED header, TPM connector and standard power connectors (24‑pin ATX and single 8‑pin EPS). UEFI AMI BIOS with 256 Mbit storage provides familiar firmware control and Windows 10/11 x64 compatibility.

Typical use cases include a compact gaming build leveraging PCIe 5.0 storage or GPU, a creator PC requiring high DDR5 capacity and M.2 bandwidth, or a reliable office workstation with multi‑drive RAID and 2.5 Gb networking.

Key selling points:

• Socket AM5 support for Ryzen 7000/8000/9000 CPUs
• DDR5 up to 256 GB across 4 DIMM slots with ECC support
• PCIe 5.0 M.2 and 2.5 Gb LAN for fast storage and networking