Gigabyte B550i AORUS PRO AX Motherboard Review

I’ve always been a fan of mini-ITX motherboards. It is still very impressive to me that we can cram so much into such a small motherboard. With the Ryzen 3000 series and upcoming Ryzen 5000 series building a super-powerful small form factor system couldn’t be easier. Gigabyte has the perfect motherboard for you too, the Gigabyte B550i AORUS PRO AX! B550 motherboards lack full PCI-Express 4.0 support, but you will get it on a single x16 slot and an M.2 slot, which means in the mini-ITX form factor you really aren’t losing all that much. Gigabyte’s B550i AORUS PRO AX is loaded with features which include a 6+2 VRM with 90A power stages, USB 3.2 support, dual M.2 slots, WiFi 6, 2.5G LAN, RGB lighting and much more! Is this the ultimate mini-ITX motherboard for Ryzen? Read on as we find out!

Special thanks to Gigabyte for providing us with the B550i AORUS PRO AX Motherboard to review.


– Supports 3rd Gen AMD Ryzen™ Processors
– Dual Channel ECC/ Non-ECC Unbuffered DDR4, 2 DIMMs
– Direct 8 Phases Digital VRM Solution with 90A Smart Power Stage (SPS)
– Advanced Thermal Design with Extended & Multi-Layered Heatsink and Thermal Baseplate
– Ultra Durable™ PCIe 4.0 Ready x16 Slot
– Dual Ultra-Fast NVMe PCIe 4.0/3.0 x4 M.2 with Thermal Guard
– Onboard Intel® WiFi 6 802.11ax 2T2R & BT5 with AORUS Antenna
– AMP-UP Audio with ALC1220-VB and Nichicon Audio Capacitors for Rear 120dB SNR
– Blazing Fast 2.5GbE LAN with Bandwidth Management
– USB 3.2 Gen2 Type-C™ & DisplayPort + Dual HDMI Support
– RGB FUSION 2.0 Supports Addressable LED & RGB LED Strips
– Smart Fan 5 Features Multiple Temperature Sensors , Hybrid Fan Headers with FAN STOP
– Q-Flash Plus Update BIOS without Installing the CPU, Memory and Graphics Card
– Pre-installed IO Shield for Easy and Quick Installation


The Gigabyte B550i AORUS PRO AX comes in a box that is not much larger than the motherboard itself. On the front there is a large AORUS logo and it does let us know that it does support AMD Ryzen 3rd generation processors.

Gigabyte B550i AORUS PRO AX Motherboard

Flipping over to the back we have a run-down of many of the features of the board as well as a list of specifications and rear I/O diagram.

Gigabyte B550i AORUS PRO AX Motherboard

Getting everything out of the box besides the motherboard you’ll find a WiFi antenna, two SATA cables, RGB extension cable, fan adapter, case badge, driver and utility CD, and a user’s manual.

Gigabyte B550i AORUS PRO AX Motherboard

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