We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
MSI PRO B850M-P WIFI micro-ATX motherboard with Ryzen 9 9900X CPU in AM5 socket

MSI

MSI PRO B850M-P WIFI + Ryzen 9 9900X AMD motherboard CPU combo

SKU CH-K69T-HA01G

Pre-built AM5 platform pairing a B850 micro-ATX board with Wi-Fi 7 and Bluetooth 5.4 alongside a 12-core 24-thread Zen 5 CPU reaching 5.6 GHz boost

  • CPU Socket TypeAM5
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel
  • PCI Express 5.0 x161 x PCI Express 5.0 x16

+CPU +Ryzen 9 9900X

  • Ready for next-gen builds with AM5 socket and B850 chipset
  • 12-core Ryzen 9 9900X hits 5.6 GHz max boost for heavy workloads
  • DDR5 memory scales to 8200 MT/s across four slots for high bandwidth
  • Wi-Fi 7 and 5G LAN deliver low-latency wireless and wired connectivity
  • 4K 60 Hz output via HDMI 2.1 and DisplayPort 1.4 for sharp visuals

Ready AM5 platform

The MSI PRO B850M-P WIFI motherboard arrives paired with a Ryzen 9 9900X processor, delivering a complete Socket AM5 foundation. The 12-core, 24-thread CPU runs at up to 5.6 GHz max boost and includes 64 MB L3 cache. The B850 chipset enables PCIe 5.0 on the primary x16 slot and provides four SATA 6Gb/s ports.

Connectivity and memory headroom

Onboard Wi-Fi 7 and Bluetooth 5.4 join a Realtek 8126 5G LAN port for flexible networking. Video outputs comprise HDMI 2.1 and DisplayPort 1.4, both requiring processor graphics for 4K at 60 Hz. Four DDR5 DIMM slots support dual-channel kits up to 256 GB and speeds of 8200 MT/s when overclocked, while the CPU itself guarantees DDR5-5600 operation.

Builders who want a pre-validated AM5 core

This combo suits enthusiasts assembling a high-throughput workstation or gaming rig who prefer a matched motherboard and CPU without separate compatibility checks. The micro-ATX form factor fits compact cases, and the unlocked multiplier invites manual tuning. Buyers needing a bundled cooler, additional PCIe 5.0 M.2 slots, or a smaller ITX footprint should evaluate alternative platforms.

Highlights

  • Ready for next-gen builds with AM5 socket and B850 chipset
  • 12-core Ryzen 9 9900X hits 5.6 GHz max boost for heavy workloads
  • DDR5 memory scales to 8200 MT/s across four slots for high bandwidth
  • Wi-Fi 7 and 5G LAN deliver low-latency wireless and wired connectivity
  • 4K 60 Hz output via HDMI 2.1 and DisplayPort 1.4 for sharp visuals

Specifications

BrandMSI
ModelPRO B850M-P WIFI+R9 9900X
Part NumberPRO B850M-P WIFI+R9 9900X
CPU Socket TypeAM5
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Maximum Memory Supported256GB
Channel SupportedDual Channel
PCI Express 5.0 x161 x PCI Express 5.0 x16
PCI Express x13 x PCIe 3.0 x1 slots
Serial ATA (SATA)4 x SATA 6Gb/s
LAN ChipsetRealtek 8126 5G LAN
Wireless LANWi-Fi 7 Solution
BluetoothBluetooth 5.4
HDMI1 x HDMI
RJ451 x RJ45
DisplayPort1 x DisplayPort
USB 3.12 x USB 5Gbps Type-A
1 xUSB 10Gbps Type-A
USB 1.1/2.04 x USB 2.0
USB Type-C1xUSB 10Gbps Type-C
Audio Ports3 Ports
Onboard USB1 x AMD Ryzen 9 9900X CPU
1 x Shin-Etsu X-23-7868-2D (1.8g)
4 x USB 2.0
4 x USB 5Gbps Type-A
1 x USB 10Gbps Type-C
Form FactorMicro ATX

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 12‑core Ryzen 9 9900X require a cooler replacement later?

The CPU ships without a cooler, so an aftermarket air or liquid cooler must be purchased before first use and will remain the only cooling component needed.

What thermal limit appears first when the 12‑core 5.6 GHz boost runs continuously?

The 9900X will hit its factory thermal ceiling and throttle boost clocks once the cooler can no longer dissipate the sustained power draw.

How loud and hot does the Realtek 8126 5G LAN and Wi‑Fi 7 combo get under all‑day traffic?

The controller runs passively on the board; it adds negligible heat and no audible noise during continuous network load.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.