The MSI PRO B850M-A WIFI PZ is a micro-ATX motherboard for desktop builders using an AMD Socket AM5 processor. It suits compact PC builds for work, content creation or gaming, with support for AMD Ryzen 7000, 8000 and 9000 series desktop processors.

Its back-connect design moves power, fan and storage connections to the rear of the board to help keep cables out of view. Four DDR5 memory slots support dual-channel memory up to 8200+ MT/s when overclocked, while one PCIe 5.0 x16 slot and two M.2 slots provide options for graphics and fast storage. Wi-Fi 7, Bluetooth 5.4 and 5 Gigabit Ethernet offer flexible networking, and the pre-installed I/O shield and EZ installation features help simplify assembly.

Key features

  • Back-connect layout helps create a cleaner-looking build by routing key connections behind the motherboard.
  • Supports AMD Ryzen 9000, 8000 and 7000 series desktop processors on Socket AM5.
  • Four DDR5 DIMM slots support dual-channel memory up to 8200+ MT/s (OC), with capacity up to 256GB.
  • Two M.2 slots provide PCIe Gen 5 x4 and Gen 4 x4 storage connectivity, alongside four SATA 6Gbps ports.
  • Wi-Fi 7 and Bluetooth 5.4 provide wireless networking and device connectivity.
  • 5G LAN supports high-speed wired networking.
  • PCIe 5.0 x16, PCIe 4.0 x4 and two PCIe 3.0 x1 slots allow for graphics and add-in cards.
  • Extended heatsinks and M.2 Shield Frozr help manage heat, while the pre-installed I/O shield eases installation.

Compatibility

Use with a compatible AMD Socket AM5 processor and DDR5 UDIMM memory. The HDMI and DisplayPort outputs require processor graphics; a discrete graphics card or processor with integrated graphics is needed for display output. Good to know: the board uses a reverse-connector layout, so check your case supports the required back-side motherboard connections before buying.

In the box

  • MSI PRO B850M-A WIFI PZ

Specifications

Specification Detail
Product type Micro-ATX motherboard
Part number PRO B850M-A WIFI PZ
Chipset AMD B850
CPU socket AMD Socket AM5
CPU support AMD Ryzen 9000 / 8000 / 7000 series desktop processors
Memory 4 DIMMs, dual-channel DDR5, up to 8200+ MT/s (OC); max. 256GB
Expansion slots 1 x PCIe 5.0 x16; 1 x PCIe 4.0 x4; 2 x PCIe 3.0 x1
Networking Wi-Fi 7; Bluetooth 5.4; Realtek 8126 5G LAN
Rear USB ports 6 x USB 10Gbps (3 Type-A + 3 Type-C); 5 x USB 5Gbps (5 Type-A); 4 x USB 2.0
Display outputs HDMI 2.1; DisplayPort 1.4; requires processor graphics
Audio 8-channel (7.1) HD Audio with Audio Boost
Warranty 3 years

With modern AM5 support, fast storage and networking, and a cable-conscious layout, this board is a capable foundation for a compact desktop build.

  • FAST SHIPPING

    NEXT DAY DPD

  • ORDER CUT OFF TIME 5PM

    FOR NEXT DAY SHIPPING

  • EASY RETURNS

    WE KNOW THINGS CAN GO WRONG

  • SECURE PAYMENTS

    POWERED BY STRIPE