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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 Socket TypeAM5
  • ChipsetAMD X870E
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardMemory Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JED
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel

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.

Highlights

  • 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

Specifications

BrandMSI
ModelPRO X870E-P WIFI+R9 9900X
Part NumberPRO X870E-P WIFI+R9 9900X
CPU Socket TypeAM5
ChipsetAMD X870E
Number of Memory Slots4x288pin (DDR5)
Memory StandardMemory Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen™ 9000 Series Processors max. overclocking frequency:
• 1DPC 1R Max speed up to 8200+ MT/s
• 1DPC 2R Max speed up to 6400+ MT/s
• 2DPC 1R Max speed up to 6400+ MT/s
• 2DPC 2R Max speed up to 6000+ MT/s
Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPOTM
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only*
* CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain
Maximum Memory Supported256GB
Channel SupportedDual Channel
PCI Express 5.0 x16PCI_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)
PCI Express 4.0 x161 x PCI Express 4.0 x16
PCI Express x4PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCI Express x1PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E4 Gen PCIe 3.0 supports up to x1 (From Chipset)
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2 Gen5 x4 128Gbps slots,
2 x M.2 Gen4 x 4 64 Gbps slots,
LAN ChipsetRealtek@ 8126 5G LAN
Wireless LANWi-Fi 7 Solution,
BluetoothBluetooth 5.4
HDMISupport 4K@60Hz as specified in HDMITM 2.1
RJ451 x RJ45
USB 3.12x USB 10Gbps Type-A
1 x USB 5Gbps Type- A
USB 1.1/2.04 x USB 2.0
USB Type-C1 x USB4 port supports USB Type-C display output,
- Requires Processor Graphics
1 x USB 20Gbps Type-C
Audio Ports8-Channel(7.1) HD Audio with Audio Boost.
Form FactorATX

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

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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