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
ATX motherboard in dark finish with large CPU cooler, four DDR5 slots and multiple M.2 heatsinks

MSI

MSI X870 GAMING PLUS WIFI AMD motherboard & Ryzen 9 9900X CPU combo

SKU CH-AJPH-BTB4V

AM5 combo with 12-core Ryzen 9 9900X, DDR5 to 8200 MT/s, PCIe 5.0 graphics, Gen5 M.2, 5G LAN and Wi-Fi 7

  • CPU Socket TypeAM5
  • ChipsetAMD X870
  • Number of Memory Slots4x288pin (DDR5)
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel
  • ECC SupportedNon-ECC

+CPU R9 9900X

  • 12 cores and 24 threads handle heavy multitasking
  • DDR5 memory scales to 8200 MT/s for faster data rates
  • 14+2+1 Duet Rail power system delivers stable CPU voltage
  • PCIe 5.0 x16 slot and Gen5 M.2 enable maximum GPU and SSD bandwidth
  • Wi-Fi 7 and 5G LAN provide high-speed wired and wireless connectivity

AM5 platform for Ryzen 9000 series

The MSI X870 GAMING PLUS WIFI motherboard paired with the Ryzen 9 9900X processor delivers an AM5 socket platform for high-performance desktop builds. The CPU provides 12 cores and 24 threads based on the Zen 5 architecture with a 5.6 GHz maximum boost frequency. The board supports Ryzen 9000, 8000 and 7000 series processors and includes Wi-Fi 7 and 5G LAN connectivity.

DDR5 8200 MT/s overclocking ceiling

Memory compatibility centres on DDR5 with four 288-pin slots supporting up to 256 GB in dual-channel mode. Ryzen 9000 series processors can reach 8200+ MT/s with a single-rank single-DIMM configuration, 6400+ MT/s with a dual-rank single-DIMM setup and 5600 MT/s at JEDEC standard speeds. Non-ECC unbuffered modules are supported across the range.

14+2+1 Duet Rail power and extended heatsinks

A 14+2+1 Duet Rail power system with dual 8-pin CPU connectors feeds the 12-core processor under sustained loads. MOSFET thermal pads rated at 7W/mK, additional choke pads and the EZ M.2 Shield Frozr II dissipate heat across the 8-layer PCB with 2oz copper. This thermal array maintains stable operation during extended compute or gaming sessions.

Highlights

  • 12 cores and 24 threads handle heavy multitasking
  • DDR5 memory scales to 8200 MT/s for faster data rates
  • 14+2+1 Duet Rail power system delivers stable CPU voltage
  • PCIe 5.0 x16 slot and Gen5 M.2 enable maximum GPU and SSD bandwidth
  • Wi-Fi 7 and 5G LAN provide high-speed wired and wireless connectivity

Specifications

BrandMSI
ModelX870 GAMING PLUS WIFI +R9 9900X
CPU Socket TypeAM5
ChipsetAMD X870
Number of Memory Slots4x288pin (DDR5)
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
Memory FeatureMemory 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 4800+ MT/s
Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPO
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 CPU
PCI Express 5.0 x16PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI Express x4PCI_E4 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_E3 Gen PCIe 3.0 supports up to x1 (From Chipset)
Other 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 processor)
* PCI_E4 slot will run at x2 speed when installing M.2 SSD in the M2_3 slot.
Serial ATA (SATA)4 x SATA 6Gb/s
M.23x M.2
M.2_1 Source (From CPU) supports up to PCIe 5.0 x4, supports 2280/2260 devices
M.2_2 Source (From Chipset) supports up to PCIe 4.0 x4, supports 22110/2280 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x2, supports 2280/2260 devices
M2_1 slot
- Supports up to PCIe 5.0 x4 (For Ryzen 9000/ 7000 Series processors)
- Supports up to PCIe 4.0 x4 (For Ryzen 8000 Series processors)
*Please refer to the manual for M.2 SSD heatsink restrictions.
SATA RAIDSupports RAID 0 and RAID 1 for M.2 NVMe storage devices
Audio ChipsetRealtek ALC897
Audio Channels7.1 Channels
LAN ChipsetRealtek 8126VB 5G LAN
Max LAN Speed5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports1 x Clear CMOS Button
2 x USB 5Gbps Type-A
2 x USB 10Gbps Type-A
4 x USB 2.0
1 x 5G LAN
2 x Wi-Fi / Bluetooth
3 x Audio connectors
1 x Flash BIOS Button
1 x HDMI
1 x USB 40Gbps Type-C
1 x USB 20Gbps Type-C
Onboard USB4 x USB 2.0 ports
2 x USB 5Gbps Type A ports
1 x USB 10Gbps Type C ports
Other Connectors1 x CPU Fan
1 x Combo Fan (Pump_Sys Fan)
6 x System Fan
1 x EZ Conn-header (JAF_1)
2 x Front Panel (JFP)
1 x Chassis Intrusion (JCI)
1 x Front Audio (JAUD)
1 x Tuning Controller connector(JDASH)
3 x Addressable V2 RGB LED connector (JARGB_V2)
1 x RGB LED connector(JRGB)
1 x TPM pin header(Support TPM 2.0)
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x Power Connector(ATX_PWR)
2 x Power Connector(CPU_PWR)
1 x Power Connector(PCIE_PWR 8pin)
Windows 11Support for Windows 11 64-bit

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

What does the 8200 MT/s DDR5 rating mean once the board is built?

It is the maximum overclocked speed reachable with a single rank kit in one slot; JEDEC standard operation runs at 5600 MT/s and dual-rank or two-DIMM configurations top out lower.

How does the PCIe 5.0 x16 slot limit graphics or add-in cards in practice?

The primary x16 slot runs at Gen 5 speeds straight from the Ryzen 9 9900X CPU, while the second full-length slot is Gen 4 x4 from the chipset and the remaining two are Gen 3 x1.

What clearance and mounting hardware does the 14+2+1 VRM and heatsink assembly need?

The extended heatsink with 7 W/mK MOSFET pads and choke pads sits over a 14+2+1 Duet Rail power stage fed by dual 8-pin CPU connectors; ensure your case and CPU cooler leave room for the tall VRM cover.

Also in this aisle

People compared these

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