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ASUS ROG STRIX B550-I Gaming Mini-ITX Motherboard Review

Rating: 8.0.

With AMD’s new Zen 3-based Ryzen 5000 processors offering new levels of compute, gaming, and power efficiency performance to mainstream desktop users, it is a great time to be a Mini-ITX fan. In this review, we examine the ASUS ROG STRIX B550-I Gaming Mini-ITX motherboard and see how it handles the AMD Zen 3 flagship CPU.

Video Timestamps:

00:00 Start
00:15 Introduction / the board
01:53 Rear mounted M.2 connector
03:05 Memory support / CPU socket
03:56 Top edge connectors
05:22 Right side of board / front panel connectors
05:57 PCI expansion slot area / M.2 daughterboard details
07:09 M.2 heatsink / right of M.2 connector
07:45 Front panel audio header / rear Type-C audio header
08:24 Rear I/O panel
09:34 Power delivery
10:57 VRM hardware components
14:17 Fan BIOS control
14:58 Test system / hardware
15:40 Test results
16:58 Thermal performance with M.2 SSDs
17:14 Audio test results
17:22 Manual overclocking and unusual sensor details
20:12 Overclocked results and power consumption
20:54 VRM and CPU temperatures
22:08 Luke's closing thoughts – Pros and Cons

Coming in at around the £200 mark, this high-end B550 offering features an actively cooled 8+2 power stage design, dual M.2 sockets, plentiful quantities of 10Gbps USB on the rear and internally, and high-speed wired and wireless networking connectivity. ASUS also included a unique feature in its USB Type-C audio connector.

£200 is steep for a B550 motherboard, even in the typically more expensive Mini-ITX form factor. And with tough competition from the similarly priced ASRock B550 Phantom Gaming-ITX/AX motherboard in particular, can ASUS’ ROG STRIX B550-I Gaming prove its worth? Let’s take a look.

Features (information taken from the ASUS webpage):

  • AMD AM4 socket: Ready for Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors
  • Best gaming connectivity: PCIe® 4.0-ready, dual M.2, USB 3.2 Gen 2 Type-C® plus HDMI™ 2.1 and DisplayPort 1.4 output
  • Smooth networking: Onboard WiFi 6 (802.11ax) and Intel® 2.5 Gb Ethernet with ASUS LANGuard
  • Robust power solution: Teamed power stages with ProCool II power connector, high-quality alloy chokes and durable capacitors
  • Renowned software: Intuitive dashboards for UEFI BIOS and ASUS AI Networking make it easy to configure gaming builds
  • DIY-friendly design: Includes Q-connector, BIOS FlashBack™ and FlexKey
  • Unmatched personalization: ASUS-exclusive Aura Sync RGB lighting, including Aura RGB header and addressable Gen 2 RGB header
  • Industry-leading Gaming Audio: Audio USB Type-C®, AI Noise Canceling Microphone, SupremeFX S1220A codec, DTS® Sound Unbound™ and Sonic Studio III for immersive audio

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