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Compact Mini ITX motherboard in black with silver heatsinks and rear I/O shield

MSI

MSI MPG B550I GAMING EDGE WIFI AMD motherboard

SKU CH-DV6W-1ZTW6

Mini ITX AM4 board with dual M.2 slots, four SATA 6Gb/s ports, 2.5Gb LAN, Intel AX200 wireless and Bluetooth 5.1

  • CPU Socket TypeAM4
  • CPU TypeSupports AM4 socket 3rd Gen AMD Ryzen processors, and future
  • ChipsetAMD B550
  • Number of Memory Slots2x288pin (DDR4)
  • Memory StandardSupports DDR4 4600+/ 4533/ 4466/ 4400/ 4266/ 4133/ 4000/ 386
  • Maximum Memory Supported64GB
  • Compact Mini-ITX fits small builds with AM4 Ryzen support
  • DDR4 up to 4600 MHz A-XMP OC for faster memory speeds
  • Dual M.2 slots including PCIe 4.0 x4 for high-speed storage
  • 5Gbps LAN plus Intel AX200 wireless and Bluetooth 5.1
  • 1-channel Realtek ALC1200 audio with S/PDIF output

Mini-ITX AM4 board for compact Ryzen builds

The MSI MPG B550I GAMING EDGE WIFI fits the AM4 socket and B550 chipset into a Mini-ITX form factor. It targets builders who want a small-footprint system with modern connectivity and overclocking headroom. Only the board and I/O shield are included in the package. BIOS ships updated to the latest version.

Single PCIe 4.0 x16 slot dictates GPU choice

One full-length PCIe 4.0 x16 slot connects directly to the processor, so graphics performance scales with the installed CPU. No second x16 or x8 slot exists, ruling out multi-GPU configurations. Builders planning dual graphics cards must choose a larger motherboard.

64 GB DDR4 dual-channel ceiling and dual M.2 storage

Two 288-pin slots support up to 64 GB of DDR4 memory in dual-channel mode, with JEDEC speeds to 3200 MHz and A-XMP profiles reaching 4600 MHz. Two M.2 Key-M slots accept 2260 and 2280 devices; the top slot runs at PCIe 4.0 x4 from the CPU, the second at PCIe 3.0 x4 from the chipset. Four SATA 6Gb/s ports add further drive capacity.

Highlights

  • Compact Mini-ITX fits small builds with AM4 Ryzen support
  • DDR4 up to 4600 MHz A-XMP OC for faster memory speeds
  • Dual M.2 slots including PCIe 4.0 x4 for high-speed storage
  • 5Gbps LAN plus Intel AX200 wireless and Bluetooth 5.1
  • 1-channel Realtek ALC1200 audio with S/PDIF output

Specifications

BrandMSI
ModelMPG B550I GAMING EDGE WIFI
CPU Socket TypeAM4
CPU TypeSupports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
ChipsetAMD B550
Number of Memory Slots2x288pin (DDR4)
Memory StandardSupports DDR4 4600+/ 4533/ 4466/ 4400/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE
Supports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC
1DPC 1R max speed 4600 MHZ
1DPC 2R max speed 4000 MHZ
Maximum Memory Supported64GB
Channel SupportedDual Channel
PCI Express 4.0 x161 x PCIe 4.0/3.0 x16 slot *
* The supported specification depends on installed processor.
Serial ATA (SATA)4 x SATA 6Gb/s
M.22 x M.2 slots (Key M)
M2_1 slot (from AMD Processor)
Supports PCIe 4.0/3.0 x4 *
Supports SATA 6Gb/s
Supports 2260/2280 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0 x4
Supports 2280 storage devices
* The supported specification depends on installed processor.
SATA RAID0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic:
1 x HDMI 2.0/2.1 port, supports a maximum resolution of 4096x2160 @60Hz*
Maximum shared memory of 16GB
* Available for the processor with integrated graphics.
Audio ChipsetRealtek ALC1200
Audio Channels7.1-Channel High Definition Audio
Supports S/PDIF output
LAN ChipsetRealtek RTL8125B
Max LAN Speed2.5Gbps
Wireless LANIntel AX200
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/5GHz (160MHz) up to 2.4Gbps
Supports 802.11 a/b/g/n/ac/ax
BluetoothSupports Bluetooth 5.1
Onboard USB1 x USB 3.2 Gen 1 5Gbps Type-C port
1 x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)
1 x USB 2.0 connector (supports additional 2 USB 2.0 ports)
Other Connectors1 x 4-pin CPU fan connector
1 x 4-pin water-pump fan connector
1 x 4-pin system fan connector
1 x Front panel audio connector
2 x System panel connectors
1 x 3-pin RAINBOW LED connector
1 x Chassis Intrusion connector
1 x Clear CMOS jumper
4 x EZ Debug LED
Form FactorMini ITX
LED LightingRGB
Dimensions (W x L)6.7" x 6.7"
Power Pin1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
Windows 11Supported
FeaturesSupport for 3rd Gen AMD Ryzen Processors and future AMD Ryzen processors with BIOS update
Supports DDR4 Memory, up to 4600(OC) MHz
Lightning Fast Game experience: PCIe 4.0, Lightning Gen 4 x4 M.2, AMD Turbo USB 3.2 Gen 2 10Gbps and Front USB Type-C connector
Enhanced Power Design: 8+2+1 Digital Power Design with Dr.MOS 60A, Core Boost, DDR4 Boost
Premium Thermal Solution: Extended Heatsink Design, M.2 Shield Frozr and 8 layer PCB with 2oz Thickened Copper are built for high performance system and non-stop gaming experience
2.5G LAN with LAN Manager and Intel Wi-Fi 6 AX Solution: Upgr

Questions about this item

What does the 64 GB maximum memory mean for a Mini-ITX build?

The board provides two DDR4 slots supporting up to 64 GB total in dual-channel mode, so a 2 x 32 GB kit fills the limit without needing four slots.

How does the PCIe 4.0 x16 slot and the two M.2 slots share bandwidth on the B550 chipset?

The top x16 slot and the first M.2 slot run at PCIe 4.0 from the Ryzen CPU; the second M.2 slot runs at PCIe 3.0 x4 from the B550 chipset, so both M.2 drives and the graphics card can operate simultaneously.

What mounting hardware is required to install this board in a Mini-ITX case?

The board follows the Mini-ITX form factor with the standard four mounting holes and includes the rear I/O shield; screws are not included, so you will need to supply standard M3 motherboard screws.

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