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MSI PRO X870E-P WIFI motherboard and Ryzen 9 9900X CPU combo in retail packaging

MSI

MSI PRO X870E-P WIFI + Ryzen 9 9900X AMD motherboard combo

SKU CH-EZH2-F3Y22

AM5 combo pairs a 12-core Ryzen 9 9900X with an X870E board supporting DDR5 up to 8200 MT/s, PCIe 5.0, Wi-Fi 7, 5G LAN and triple M.2 slots

  • CPU socketAM5
  • ChipsetAMD X870E
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryMemory Support DDR5 8200–5600 (OC) MT/s / 5600–4800 (JEDEC)
  • Max supported RAM256 GB

CPU +Ryzen 9 9900X

  • 12-core Ryzen 9 9900X reaches 5.6 GHz max boost
  • DDR5 memory scales to 8200 MT/s overclocked on four 288-pin slots
  • PCIe 5.0 x16 slot plus Gen5 M.2 at 128 Gbps bandwidth
  • Wi-Fi 7 with 320 MHz channel delivers 5.8 Gbps wireless
  • 5G LAN and Bluetooth 5.4 give fast wired and wireless connectivity

AM5 motherboard with 12-core Ryzen 9 9900X

This combo pairs an X870E board with a Ryzen 9 9900X processor that delivers 12 cores and 24 threads. It targets builders who want a high-frequency platform for content creation, compilation or gaming without assembling parts separately.

Suits DDR5 overclockers and Wi-Fi 7 adopters

The board runs DDR5 up to 8200 MT/s when overclocked and includes a Wi-Fi 7 radio with a 320 MHz channel. Users staying on 4800 MT/s JEDEC memory or relying on older wireless standards will not use the headline capabilities.

Check AM5 cooler clearance and PSU connectors

Verify that your CPU cooler fits the AM5 socket layout and that the power supply provides the 12VHPWR or dual 8-pin EPS cables the 60A VRM may demand. Confirm the chassis has room for three M.2 drives and a USB4 40Gbps header.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $747.99
Pricier than about 76% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameMSI
Model namePRO X870E-P WIFI+R9 9900X
Part numberPRO X870E-P WIFI+R9 9900X
Processor
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots1 x M.2 Gen5 x4 128 Gbit/s slots,
2 x M.2 Gen4 × 4 64 Gbit/s slots,
Connectivity
Ethernet controllerRealtek@ 8126 5G LAN
Wi-Fi standardWi-Fi 7 Solution,
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsPCI_E1 slot
- Supports PCIe 5.0 x16 (For Ryzen 9000/ 7000 Series processors)
- Supports PCIe 4.0 x8 (For Ryzen 8700/ 8600/ 8400 Series processors)
- Supports PCIe 4.0 x4 (For Ryzen 8500/ 8300 Series processors)
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe x4 slotsPCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCIe x1 slotsPCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E4 Gen PCIe 3.0 supports up to x1 (From Chipset)
HDMI portsSupport 4K@60 Hz as specified in HDMITM 2.1
Ethernet port1 x RJ45
USB 3.1 ports2x USB 10 Gbit/s Type-A
1 x USB 5 Gbit/s Type- A
USB 2.0 ports4 x USB 2.0
USB-C ports1 x USB4 port supports USB Type-C display output,
- Requires Processor Graphics
1 x USB 20 Gbit/s Type-C
Audio jacks8-Channel(7.1) HD Audio with Audio Boost.
Size & build
Form factorATX

Other versions of this model

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Questions about this item

Which DDR5 memory kit and CPU cooler must I already have for the Ryzen 9 9900X and X870E board to work?

You need a DDR5 kit up to 256 GB across the four 288-pin slots and an AM5-compatible cooler rated for the 12-core 9900X; the CPU ships without a cooler in the box.

Will my existing PCIe 4.0 graphics card and SATA SSDs run at full speed on this board alongside the new CPU?

The primary PCI_E1 slot negotiates PCIe 4.0 x16 with Ryzen 7000 or 8000 series CPUs, and the four SATA 6 Gb/s ports operate independently of the processor generation.

How can I verify the Wi-Fi 7 link is using the 320 MHz channel and the LAN is running at 5 Gbps after build?

Check the OS network adapter properties — Wi-Fi 7 should report a 320 MHz channel width and the Realtek 8126 LAN should show a 5 Gbps link speed when connected to a 5 GbE switch.

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