Gigabyte B550I AORUS Pro AX Mini-ITX Motherboard Socket AM4 AMD B550 DDR4 PCIe 4.0 Dual M.2 Wi-Fi 6 2.5GbE Black
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GigaByte
B550I AORUS PRO AX
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Gigabyte B550I AORUS Pro AX — Premium AM4 Mini-ITX
AMD AM4 · B5502× DDR4 up to 64GBPCIe 4.0 + Dual M.2Wi-Fi 6 · 2.5GbE
The Gigabyte B550I AORUS Pro AX is a premium Mini-ITX motherboard built on the AMD B550 chipset and the Socket AM4 platform, supporting AMD Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 processors. Sold under Gigabyte part number B550I AORUS PRO AX (EAN 4719331809508), it packs a strong 8-phase 90A VRM, PCIe 4.0 graphics, dual PCIe 4.0/3.0 M.2 with Thermal Guard cooling, Intel Wi-Fi 6 and 2.5GbE networking into a compact 17×17cm form factor — built for high-performance small-form-factor AMD builds. Typically in stock with fast delivery across Cyprus.
Compatibility — read before buying
This is an AMD Socket AM4 board on the B550 chipset, supporting Ryzen 5000 / 5000G / 4000G / 3000 processors — it is not compatible with Intel CPUs or AMD AM5 (Ryzen 7000+). It uses DDR4 memory only (not DDR5), with two DIMM slots (max 64GB). Its Mini-ITX footprint requires an ITX-compatible case. PCIe 4.0 requires a Ryzen 5000 or 3000 CPU.
Best For
✓High-performance small-form-factor (SFF) AMD builds
✓AMD Ryzen 5000 / 3000 ITX gaming PCs
✓Compact builds needing strong power delivery
✓PCIe 4.0 graphics + Gen4 NVMe storage
✓Wi-Fi 6 and 2.5GbE connectivity
✓Reusing existing AM4 CPUs and DDR4 memory
Key Features
Strong 8-phase VRM for ITX
A Direct 8-phase digital VRM with 90A Smart Power Stages delivers clean, stable power to high-end Ryzen CPUs even in a compact Mini-ITX chassis.
Dual PCIe 4.0/3.0 M.2 + Thermal Guard
Two M.2 slots (CPU PCIe 4.0 x4 + chipset PCIe 3.0 x4) with Thermal Guard cooling, plus four SATA 6Gb/s ports with RAID for flexible storage.
Premium connectivity
Intel Wi-Fi 6 with Bluetooth and Realtek 2.5GbE LAN, plus USB-C, deliver fast wireless and wired networking on a small board.
AORUS build quality
PCIe 4.0 Ready x16 slot, robust cooling and AORUS design make this a top-tier choice for compact AMD enthusiast builds.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The B550I AORUS Pro AX is one of the best AM4 Mini-ITX boards — its strong 8-phase 90A VRM, dual M.2 with Thermal Guard, Wi-Fi 6 and 2.5GbE make it ideal for high-performance Ryzen 5000 small-form-factor builds. If you want the newer AM5 platform with DDR5 and PCIe 5.0 in ITX, a B650I board is the route; for Intel ITX, an LGA 1700/1851 ITX board applies. Pair it with a fast PCIe Gen4 internal SSD in the CPU M.2 slot.
Buyer's Guide
Buy it if
You are building a high-performance compact AMD Ryzen 5000/3000 ITX system, reusing DDR4, with strong power delivery, Wi-Fi 6 and 2.5GbE.
Skip it if
You want the newer AM5 platform with DDR5/PCIe 5.0, or an Intel build — choose a B650I (AM5) or Intel ITX board.
Also consider
An AMD B650I (AM5, DDR5) ITX board for the newer platform, or a full-ATX B550 board if size is not a constraint.
Features - GigaByte - B550I AORUS PRO AX
CPU Socket
- Socket AM4
Colour
black
Interface
- USB Type-C,
- M.2,
- Ethernet,
- Bluetooth,
- WIFI
More Details
Product Code
03:142323
EAN Code
4719331809508
Manufacturer
GigaByte