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ASRock B850 Pro-A AM5 ATX Motherboard PCIe 5.0 2.5G LAN

Brand:
ASRock
ASRock B850 Pro-A AM5 ATX Motherboard
ASRock B850 Pro-A AM5 ATX Motherboard PCIe 5.0 2.5G LAN
€185.94 inc. VAT
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90-MXBQM0-A0UAYZ
€156.25 €173.61
€185.94 inc. VAT
Ships from EU stock: 23 item(s)
Product Code
04:519346
EAN Code
4711581490185
Manufacturer
ASRock

Quick Specs

Socket
AMD AM5
Chipset
AMD B850
Form Factor
ATX
Memory
4x DDR5, up to 256GB
Storage
1x PCIe 5.0 M.2 + 3x M.2
Networking
Realtek 2.5G LAN
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ASRock B850 Pro-A AM5 ATX Motherboard

A reliable ATX AM5 motherboard for Ryzen desktop builds with DDR5 memory, PCIe 5.0 graphics, PCIe 5.0 M.2 storage, 2.5G LAN and USB-C connectivity.
AMD AM5AMD B850DDR52.5G LAN

The ASRock B850 Pro-A is an ATX motherboard for AMD Ryzen 9000, 8000 and 7000 Series desktop processors. It combines the AMD B850 chipset with four DDR5 memory slots, a 14+2+1 phase power design, PCIe 5.0 graphics support, four M.2 slots and Realtek 2.5G LAN, making it a strong choice for modern gaming, office and productivity PC builds.

Compatibility Note: Please confirm CPU compatibility, BIOS version, memory QVL support and case clearance before purchase. PCIe 5.0 support and display output capabilities vary depending on the installed Ryzen processor.
Best For
✓ AMD Ryzen AM5 desktop builds
✓ ATX gaming and productivity PCs
✓ DDR5 memory configurations
✓ Multi-SSD NVMe storage setups

Key Features

 
Modern AMD AM5 Platform
Supports AMD Ryzen 9000, 8000 and 7000 Series processors, giving builders a current platform for modern desktop systems.
 
Strong Power and DDR5 Support
The 14+2+1 phase power design and four DDR5 DIMM slots support stable AM5 builds with up to 256GB memory capacity.
 
PCIe 5.0 Graphics and Storage
A PCIe 5.0 x16 slot and Blazing M.2 PCIe Gen5x4 slot provide next-generation bandwidth for compatible graphics cards and NVMe SSDs.
 
Fast LAN and USB-C Connectivity
Realtek 2.5G LAN, rear USB-C and a front USB 3.2 Gen2x2 Type-C header help support fast networking and modern peripheral connections.

Technical Specifications

Brand ASRock
Model B850 Pro-A
MPN 90-MXBQM0-A0UAYZ
EAN 4711581490185
CPU Socket AMD AM5
CPU Support AMD Ryzen 9000, Ryzen 8000 and Ryzen 7000 Series processors
Chipset AMD B850
Memory 4x DDR5 DIMM, up to 256GB, up to DDR5 8000+ OC
Power Design 14+2+1 phase power design, 80A Dr.MOS for VCore+SOC+MISC
Expansion Slots 1x PCIe 5.0 x16 slot + 1x PCIe 4.0 x16 slot running at x4
M.2 Storage 1x PCIe Gen5x4 M.2 + 2x PCIe Gen4x4 M.2 + 1x PCIe Gen3x4 M.2
SATA 4x SATA3 6.0Gb/s connectors
LAN Realtek 2.5G LAN
Wireless Not included, M.2 Key E slot available for compatible Wi-Fi/BT module
Audio Realtek ALC897 7.1-channel HD audio
Display Outputs 1x HDMI 2.1 + 1x USB-C DP-alt mode, CPU graphics required
Rear USB 1x USB-C 3.2 Gen2, 1x USB-C 3.2 Gen1, 4x USB-A 3.2 Gen1, 6x USB 2.0
Form Factor ATX, 30.5cm x 24.4cm

Frequently Asked Questions

Does the ASRock B850 Pro-A include Wi-Fi?
No. This model includes Realtek 2.5G LAN and an M.2 Key E slot for a compatible Wi-Fi/BT module, but wireless networking is not included as standard.
Does it support PCIe 5.0?
Yes. The board includes a PCIe 5.0 x16 slot and one PCIe Gen5x4 M.2 slot, with actual lane operation depending on the installed Ryzen CPU.
Can I use the HDMI or USB-C display output without a graphics card?
Only if the installed AMD processor includes integrated graphics. Display output support depends on the CPU used.
Singular Expert Insight
Choose this model if you want a full-size AM5 board with strong power delivery, PCIe 5.0 graphics, PCIe 5.0 M.2 storage, four total M.2 slots and 2.5G LAN. If you need built-in wireless networking, choose a Wi-Fi-equipped B850 or X870 motherboard instead.

Buyer’s Guide

Buy it if
You need an ATX AM5 motherboard with DDR5, PCIe 5.0 graphics, PCIe 5.0 M.2 storage, four M.2 slots and 2.5G LAN.
Skip it if
You need built-in Wi-Fi, a smaller micro ATX board, USB4, or a premium enthusiast model with broader onboard connectivity.
Also consider
Consider a B850 Wi-Fi or X870 board if wireless networking, more advanced rear I/O or a higher-end feature set is required.

Features - ASRock - 90-MXBQM0-A0UAYZ

CPU Socket
  • Socket AM5
More Details
Product Code
04:519346
EAN Code
4711581490185
Manufacturer
ASRock
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