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ATX motherboard in black and silver with silver CPU cooler on top

MSI

MSI MAG X870E GAMING PLUS MAX WIFI AMD motherboard & Ryzen 9 9900X combo

SKU CH-JAWZ-JYJ7R

AM5 motherboard and 12-core Ryzen 9 9900X combo with DDR5 up to 8200 MT/s, PCIe 5.0 x16, triple M.2 slots, 5G LAN and Wi-Fi 7

  • CPU Socket TypeAM5
  • CPU TypeSupports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processor
  • ChipsetAMD X870E
  • Number of Memory Slots4x DDR5 UDIMM
  • Memory StandardMemory Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JED
  • Maximum Memory Supported256GB

CPU +Ryzen 9 9900X

  • Ready for future CPU upgrades with a 64MB BIOS
  • Maximum CPU performance unlocked by OC Engine clock generator
  • Graphics card swaps simplified with EZ PCIe Release button
  • Tool-less M.2 SSD installation using EZ M.2 Shield Frozr II
  • 12 cores and 24 threads handle heavy workloads

Combo for AM5 builds

This bundle pairs an MSI MAG X870E GAMING PLUS MAX WIFI motherboard with an AMD Ryzen 9 9900X processor. The CPU delivers 12 cores and 24 processing threads for heavy multitasking and content creation. The X870E chipset unlocks PCIe 5.0 connectivity for graphics and storage. The combination suits enthusiasts building a high-performance desktop on the AM5 platform.

Tool-free installation and 5G LAN

A 64 MB BIOS ROM provides headroom for future CPU compatibility. EZ PCIe Release lets you remove a graphics card with a single button press. EZ M.2 Shield Frozr II secures up to three drives in 2280 or 2260 form factors without tools. Extended PWM heatsinks keep power delivery stable. Onboard 5G LAN and Wi-Fi 7 with a 320 MHz channel enable 5.8 Gbps peak wireless throughput.

Check CPU cooler clearance and power

Verify that your chassis can accommodate the motherboard ATX footprint and chosen CPU cooler height. Ensure the power supply includes an 8-pin EPS connector for the 9900X and sufficient PCIe connectors for your graphics card. Confirm that DDR5 modules match the board's 256 GB maximum and dual-channel layout. Update the BIOS if you plan to use Ryzen 9000 series processors beyond the 9900X.

Highlights

  • Ready for future CPU upgrades with a 64MB BIOS
  • Maximum CPU performance unlocked by OC Engine clock generator
  • Graphics card swaps simplified with EZ PCIe Release button
  • Tool-less M.2 SSD installation using EZ M.2 Shield Frozr II
  • 12 cores and 24 threads handle heavy workloads

Specifications

BrandMSI
ModelMAG X870E GAMING PLUS MAX WIFI+R9 9900X
Part NumberMAG X870E GAMING PLUS MAX WIFI+R9 9900X
CPU Socket TypeAM5
CPU TypeSupports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors
ChipsetAMD X870E
Number of Memory Slots4x DDR5 UDIMM
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 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 CPUs may fail
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
PCI Express 5.0 x16PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_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 Express 4.0 x161 x PCI Express 4.0 x16
PCI Express 3.0 x160 x PCI Express 3.0 x16
PCI Express x162 x PCI Express x16
PCI Express x11 x PCI Express x1
Serial ATA (SATA)4x SATA 6G
M.23 x M.2 (Support PCIe 5.0 x4 & PCIe 4.0 x4)
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 2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 22110/2280 devices
M.2_1 slot (From CPU)
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)
M.2_2 slot (From CPU)
Supports up to PCIe 4.0 x4 (For Ryzen 9000/ 8700/ 8600/ 8400/ 7000 Series processors)
M.2_3 slot (From CPU)
Supports up to
Audio ChipsetRealtek ALC897
Audio Channels7.1 Channels
LAN ChipsetRealtek 8126VB
Max LAN Speed5Gbps
BluetoothYes
Back I/O Ports4 x USB 2.0
2 x USB 5Gbps Type A
2 x USB 10Gbps Type A
1 x USB 20Gbps Type C
1 x USB 40Gbps Type C
1 x HDMI
HDMI1 x HDMI
DisplayPort1 x DisplayPort
Onboard USB1 x USB Type-C header, with USB 3.2 Gen 2x2 + 4 x USB 3.2 + 6 x USB 2.0
Other Connectors1x Power Connector(ATX_PWR)
2x Power Connector(CPU_PWR)
1x Power Connector(PCIE_PWR 8pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
6x System Fan
1x EZ Conn-header (JAF_1)
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Tuning Controller connector(JDASH)
3x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
2x Direct OC Jumper (JBCLK)
Form FactorATX
LED LightingNone RGB
Dimensions (W x L)243.84mm x 304.8mm
Windows 11Supported
Features4x EZ Debug LED
1x EZ Memory Detection LED

Other versions of this model

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

Questions about this item

Will the Ryzen 9 9900X run at full speed with the board’s power delivery?

The extended PWM heatsink and enhanced circuit design are built so high-end processors run at full speed, and the OC Engine clock generator releases the maximum power of the CPU.

Can I install a PCIe 5.0 graphics card and a PCIe 5.0 M.2 SSD at the same time?

Yes, the primary PCIe 5.0 x16 slot and the CPU-sourced M.2_1 connector both operate at Gen 5.0 bandwidth simultaneously.

Is any tool needed to fit an M.2 drive under the heatsink?

The EZ M.2 Shield Frozr II uses a tool-less latch, so the SSD and shield can be installed or removed without a screwdriver.

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