The ASROCK B850M Pro-A is a Micro-ATX mainboard with the mid-range AMD B850 chipset and AMD AM5 socket. It supports both the Ryzen 9000, 8000 and 7000 CPUs.
Graphics cards and NVMe SSDs are connected via PCIe 5.0 and data transfer rates of up to 10 Gbit/s are possible via USB 3.1.
To get the best out of your gaming PC, the CPU can be overclocked to higher clock rates via the mainboard. This ensures a stable power supply to the processor so that even high-end CPUs can operate at full power over a longer period of time. You can also fully utilise the DDR5 memory with overclocking. Just in case, the ASROCK B850M Pro-A offers you BIOS flashback.
Processor family | AMD 7000 Series |
Memory type | DDR5 RAM |
Number of memory modules (RAM) | 4 x |
Internal connection options | M.2 (3x), S-ATA III (4x), TPM Header |
Mainboard features | Front panel audio connector, RGB header |
Item number | 53885128 |
Manufacturer | AsRock |
Category | Motherboards |
Manufacturer no. | 90-MXBR8-A0UAYZ |
Release date | 6.1.2025 |
Sales rank in Category Motherboards | 280 of 1021 |
Form factor | Micro ATX (mATX) |
Socket | AM5 |
Chipset | AMD B850 |
Mainboard features | Front panel audio connector, RGB header |
Operating system compatibility | Windows, Windows 10 |
BIOS type | UEFI AMI |
Processor family | AMD 7000 Series |
Memory form factor | DIMM |
Number of memory modules (RAM) | 4 x |
Max. memory (RAM) | 256 GB |
Memory chip | DDR5 SDRAM |
Max. RAM OC | 8000 MHz |
Supported memory speed | 8000 MHz |
Memory type | DDR5 RAM |
RAM buffer | Unbuffered |
Video connections | DisplayPort (1x), HDMI OUT (1x) |
Video connection version | Display port 1.4, HDMI 2.1 |
Network connections | RJ45 2.5 Gigabit Ethernet (1x) |
Ethernet controller brand | Realtek |
Ethernet controller | Dragon RTL8125BG |
Max. port speed | 2.50 Gbit/s |
Chip | Realtek ALC897 |
Audio channel | 7.1 Channel |
Audio Connections | Jack 3.5mm Line In (1x), Microphone |
RAID configuration | 0, 1, 10 |
Internal connection options | M.2 (3x), S-ATA III (4x), TPM Header |
Expansion slot | PCI Express x16 (1x) |
PCI express version (max.) | 5 |
Number of fan connector | 5 |
USB ports | USB-A, USB-C |
Exact USB ports | USB-A 3.2 Gen 1 (2x), USB-A 3.2 Gen 2 (1x), USB-C 3.2 Gen 1 (1x) |
Power connectors | 24-pin ATX, 4-pin Molex, 8-pin EATX 12V |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Sata Cables, Screws |
Length | 244 mm |
Width | 244 mm |
Height | 244 mm |
Length | 30 cm |
Width | 26 cm |
Height | 6 cm |
Weight | 1.21 kg |
How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?
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Source: Digitec Galaxus