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Compact Mini-ITX motherboard with black PCB and silver heatsinks, AM4 socket, two DDR4 slots, single PCIe x16 slot, dual M.2 covers

ASUS

ASUS ROG STRIX B550-I GAMING AMD motherboard

SKU CH-G0NR-69EV6

Mini ITX AMD B550 board for Ryzen CPUs with dual DDR4 slots up to 64 GB, one PCIe 4.0 x16 slot, four SATA ports, two M.2 sockets, 2.5 Gb LAN and Wi‑Fi 6

  • ProcessorRyzen Series
  • ChipsetAMD B550
  • Form factorMini ITX
  • CPU socketAM4
  • Memory slot count2 × 288pin (DDR4)
  • Supported memoryDDR4 3200
  • Compact ITX board fits small builds
  • PCIe 4.0 x16 slot enables modern GPU performance
  • Dual-channel DDR4 up to 64GB supports multitasking
  • Intel I225-V 2.5Gbps LAN plus Wi-Fi 802.11 ax gives fast networking
  • ROG SupremeFX S1220A 7.1 audio delivers immersive sound

AM4 Mini-ITX for compact Ryzen builds

The ASUS ROG STRIX B550-I GAMING is an AMD B550 motherboard in the Mini-ITX form factor. It fits AM4 socket Ryzen processors and provides a full feature set in a small footprint. The board targets builders who want high-end audio and networking in a space-saving chassis.

Suits small-form-factor gamers.

This board suits enthusiasts building a compact gaming system with a Ryzen 5000 series CPU after a BIOS update. It is not suited for users who require four memory slots, extensive internal drive bays or multiple full-length expansion cards. The two-slot memory limit caps total capacity at 64GB.

Dual M.2 slots set the storage ceiling

Two M.2 sockets are provided alongside four SATA 6Gb/s ports with RAID 0/1/10 support. This layout defines how many fast drives can be installed directly on the board. Builders planning more than two M.2 devices must add a controller card or choose a different platform.

How it compares

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

Price $164.99
Cheaper than about 59% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Product lineROG
Model nameSTRIX B550-I GAMING
Processor
ProcessorRyzen Series
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 3200
Max supported RAM64 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots2 x M.2
SATA and RAID support0/1/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipROG SupremeFX Surround Sound High Definition Audio CODEC S1220A
Sound channels7.1 Channels
Connectivity
Ethernet controllerIntel I225-V
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth supportYes
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
Onboard USB headers3 x USB 3.2 + 2 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorMini ITX
Width and length6.7 in × 6.7 in
Compatibility
Windows 11 supportSupported
More details
LightingRGB

Questions about this item

Will the VRM or chipset throttle first during a long, heavy workload?

The board uses a robust VRM heatsink and active chipset cooling, so the VRM typically reaches its thermal limit before the B550 chipset under sustained loads.

How loud does the chipset fan get and what power does the board draw at full load?

The tiny chipset fan spins up under load and is audible in a quiet room; total board power draw depends on the installed CPU and memory configuration.

Which CPU, cooler and memory kit must I already have to use this Mini-ITX board?

You need an AM4 Ryzen processor, a low-profile cooler that clears the VRM heatsink, and a DDR4 kit up to 64 GB across the two slots.

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