ASRock B850M Pro-A AM5 Micro ATX DDR5 PCIe 5.0 Motherboard

ASRock B850M Pro-A AM5 Micro-ATX Motherboard

The ASRock B850M Pro-A is a high-performance Micro-ATX motherboard built for AMD Ryzen 7000, 8000 and 9000 series processors. Combining PCIe 5.0 support, fast DDR5 memory, and versatile connectivity, it is designed to deliver reliability and performance for modern gaming and productivity systems.

Key Features & Benefits

✔ AMD AM5 Platform with Future-Ready Support
Compatible with the latest Ryzen processors, offering a strong foundation for next-generation performance and upgrades.

✔ 8+2+1 Phase Power Design with Dr.MOS
Delivers stable, efficient power to the CPU for improved performance, system stability, and overclocking capability.

✔ DDR5 Memory Support up to 8000+ (OC)
Four DIMM slots support high-speed DDR5 memory for faster data processing and improved multitasking.

✔ PCIe 5.0 Graphics & Storage Ready
Includes PCIe 5.0 x16 slot for GPUs and a Blazing M.2 Gen5 x4 slot for ultra-fast NVMe SSD performance.

✔ Triple M.2 Storage Support
One PCIe Gen5 and two PCIe Gen4 M.2 slots allow for high-speed storage expansion and flexible configurations.

✔ 2.5GbE LAN for High-Speed Networking
Provides fast, stable wired connectivity ideal for gaming, streaming, and professional workloads.

✔ USB-C Connectivity (Front & Rear)
High-speed USB 3.2 Gen2 Type-C on the rear and front panel header for modern device compatibility.

✔ Integrated Graphics Output
HDMI and DisplayPort outputs support up to 4K 120Hz when using compatible Ryzen processors.

✔ Polychrome RGB Sync
Customise lighting with onboard RGB and ARGB headers for a personalised system build.

✔ BIOS Flashback & EZ Features
Simplifies updates and troubleshooting without needing a CPU installed.

Technical Specifications

General

• Form Factor: Micro-ATX (24.4 x 24.4 cm)
• Chipset: AMD B850

CPU Support

• AMD Ryzen 9000 / 8000 / 7000 Series (AM5 Socket)

Memory

• 4 x DDR5 DIMM Slots
• Dual Channel
• Up to 256GB Capacity
• Speeds up to 8000+ MHz (OC)
• Supports XMP & EXPO

Expansion Slots

• 1 x PCIe 5.0 x16
• 1 x PCIe 4.0 x4
• 1 x M.2 Key E (Wi-Fi module support)

Storage

• 1 x M.2 PCIe Gen5 x4
• 2 x M.2 PCIe Gen4 x4
• 4 x SATA 6Gb/s
• RAID 0/1/10 support

Graphics Output

• 1 x HDMI 2.1 (up to 4K 120Hz)
• 1 x DisplayPort 1.4 (up to 4K 120Hz)

Networking

• Realtek 2.5GbE LAN

USB Connectivity

• Rear:
  • 1 x USB 3.2 Gen2 Type-C
  • 1 x USB 3.2 Gen2 Type-A
  • 2 x USB 3.2 Gen1
  • 4 x USB 2.0
• Internal:
  • 1 x USB 3.2 Gen1 Type-C (front)
  • 4 x USB 3.2 Gen1
  • 4 x USB 2.0

Audio

• 7.1 Channel HD Audio (Realtek ALC897)

Internal Connectors

• RGB & ARGB headers
• Multiple fan headers with smart control
• TPM header
• Front panel USB-C header

Why Choose the ASRock B850M Pro-A

The B850M Pro-A is a strong choice for users building a modern AM5 system with a balance of performance, expandability, and value. With PCIe 5.0 support, fast DDR5 memory, and multiple M.2 slots, it is well-suited for gaming PCs, content creation systems, and professional workstations.

Its robust power design, high-speed connectivity, and future-ready platform make it a dependable foundation for long-term upgrades and high-performance computing.