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ATX motherboard dark finish metal heatsinks four DDR5 slots multiple M.2 shields I/O cover

MSI

MSI MEG X870E ACE MAX AMD motherboard

SKU CH-RSM8-CJ6ZW MPN MEG X870E ACE MAX

An ATX board for AM5 Ryzen 7000, 8000 and 9000 CPUs with 18+2+1 110A power, 64MB BIOS, four DDR5 slots up to 9000 MT/s, dual PCIe 5.0 x16, five M.2 sockets, USB4, Wi-Fi 7 and 10G LAN

  • CPU socketAM5
  • ChipsetAMD X870E
  • Form factorATX
  • South bridgeAMD X870E
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 5600

Model MEG X870E ACE MAX

Show 3 more
  • Supports AMD Ryzen 9000, 8000 and 7000 series processors on AM5 socket
  • 18+2+1 DRPS power stages rated at 110A SPS with OC Engine clock generator
  • DDR5 memory up to 9000 MT/s overclocked across four slots with AMD EXPO profiles
  • Two CPU-sourced M.2 slots at PCIe 5.0 x4 plus three chipset M.2 slots at PCIe 4.0 x4
  • Wi-Fi 7, 10G LAN and USB4 connectivity built into the rear I/O panel

Built for AM5 high-end builds

This MSI MEG X870E ACE MAX motherboard targets enthusiasts pairing Ryzen 9000, 8000 or 7000 processors with fast DDR5 memory. The 18+2+1 110A SPS power stage design and 64MB BIOS ROM support heavy overclocking and future CPU updates. Dual PCIe 5.0 x16 slots and two CPU-linked M.2 2280 connectors at PCIe 5.0 x4 give maximum bandwidth for graphics and storage.

Ideal for extreme overclockers, not for compact

The board suits users who need 10G LAN, Wi-Fi 7, USB4 and five M.2 slots (two at PCIe 5.0, three at PCIe 4.0) plus four SATA 6Gb/s ports with RAID 0/1/10. Builders wanting a smaller form factor, fewer expansion slots or a lower-tier chipset should look at other AM5 models instead.

Verify AM5 cooler clearance, DDR5 EXPO kits and

Confirm your CPU cooler fits the dense VRM heatsink layout around the socket. Ensure memory kits are DDR5 EXPO validated for up to 256GB across four 288-pin slots. Check that your chassis accommodates the full ATX footprint and has mounting points for the extensive rear I/O including dual LAN and USB4 ports.

How it compares

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

Price $551.99
Pricier than about 68% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMSI
Product lineMEG
Processor
CPU socketAM5
ChipsetAMD X870E
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 5600
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsM.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices
M.2_2 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 22110/2280 devices
M.2_4 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
M.2_5 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280 devices
SATA and RAID support0/1/10
Audio & video
Audio chipRealtek ALC4082
Sound channels7.1 Channels
Connectivity
Ethernet controllerMarvell AQC113CS, Realtek 8126
Second LAN controllerRealtek 8126
Maximum network speed10 Gbit/s + 5 Gbit/s
Wi-Fi standardWiFi IEEE 802.11 a / b / g / n / ac / ax / be
Bluetooth supportYes
Ports & slots
PCIe 5.0 x16 slots2 x PCI Express 5.0 x16
PCIe 4.0 x16 slots2 x PCI Express 4.0 x16
PCIe x16 slots2 x PCI Express x16
PCIe x4 slots1 x PCI Express x4
Additional slots1 x M.2 (Key-E)
Rear panel ports9 x USB 10 Gbit/s Type-A, 2 x USB 10 Gbit/s Type-C, 2 x USB 40 Gbit/s Type-C, 1 x HDMI, 1 × 10G LAN, 1 × 5G LAN, 1 x Optical S/PDIF-Out
Video connectorsHDMI + 2 x Display Port
HDMI ports1 x HDMI
Ethernet port2 x RJ45
DisplayPort connectors2 x DisplayPort
USB 3.1 ports11 x USB 3.1
USB 3.0 ports4 x USB 3.0
USB 2.0 ports4 x USB 2.0
USB-C ports2 x USB Type-C® port, with USB 40 Gbit/s support; 2 x USB Type-C® port, with USB 10 Gbit/s support; 1 x USB Type-C® port, with USB 20 Gbit/s support
S/PDIF output1 x Optical
Audio jacks5 Ports
Onboard USB headers4 x USB 3.2 + 4 x USB 2.0 + 1 x USB Type-C header, with USB 3.2 Gen 2 × 2
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length243.84 mm × 304.8 mm
Shipping weight3.47 kg
Package size356 × 292 × 89 mm
Compatibility
Windows 11 supportSupported
More details
South bridgeAMD X870E
S-videoNo
LightingRGB

Other versions of this model

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Questions about this item

Which processor must I already own for this AM5 board to work?

A Ryzen 7000, 8000 or 9000 series CPU fits the AM5 socket and is required for the board to function.

Will my PCIe 4.0 graphics card run at full speed in the 5.0 x16 slots?

Yes, the two PCIe 5.0 x16 slots are backward compatible and will operate a PCIe 4.0 card at its native 4.0 bandwidth.

How can I confirm the DDR5 memory is running at the rated EXPO speed after assembly?

Enter the BIOS and verify the memory frequency shows the EXPO profile value, then cross-check with a Windows tool such as Task Manager or CPU-Z.

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