ASRock
ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors motherboard Mini ITX
Bottom line: The ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD ($99.99 on Amazon as of 2026-10-20 22:13 UTC, orderable but not in stock): Mini ITX B550 board for Ryzen 3000, 5000, and 4000/5000 G-Series desktop CPUs; main trade-off: not compatible with AMD Athlon processors.
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*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Mini ITX B550 board for Ryzen 3000, 5000, and 4000/5000 G-Series desktop CPUs
- ✓ DDR4 support rated to 4733+ MHz when overclocked
- ✓ HDMI and DisplayPort outputs for Ryzen G-Series integrated graphics
- ✓ 7.1-channel HD audio via the Realtek ALC887 codec
Cons
- ✗ Not compatible with AMD Athlon processors
- ✗ Realtek ALC887 is an entry-level codec, not aimed at audiophiles
- ✗ Mini ITX leaves less room for expansion than mATX or ATX boards
- ✗ Video outputs need a G-Series APU; standard Ryzen chips need a GPU
Manufacturer description
The ASRock B550M-ITX/AC is a Mini ITX AM4 motherboard for compact Ryzen builds where every millimeter counts. It supports AMD Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000, and 5000 G-Series desktop processors. That covers everything from a budget APU home-theater PC to a Ryzen 5000 gaming rig in a shoebox-sized case. Memory support is rated for DDR4 4733+ when overclocked, so you can run fast kits to feed Ryzen's Infinity Fabric. If you pair the board with a G-Series APU, the onboard HDMI and DisplayPort outputs let you drive a display without a discrete graphics card. That helps in…
SpecPicks Verdict
SpecPicks scored ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD… using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. ASRock's motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will the ASRock B550M-ITX/AC work with a Ryzen 7 5800X3D or other Ryzen 5000 CPUs?
ASRock lists support for Ryzen 5000 and 5000 G-Series desktop processors on AM4. For a specific chip, check ASRock's CPU support list for the required BIOS version before you install it.
Does this motherboard support AMD Athlon processors?
No. ASRock states that the B550M-ITX/AC supports Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000, and 5000 G-Series desktop processors but is not compatible with AMD Athlon processors.
Can I use the HDMI and DisplayPort outputs without a graphics card?
Yes, but only with a Ryzen G-Series APU that has integrated graphics, such as the 4000 G-Series or 5000 G-Series. Standard Ryzen CPUs without integrated graphics need a discrete GPU for video output.
What RAM speed does the ASRock B550M-ITX/AC support?
The board supports DDR4 memory up to 4733+ MHz when overclocked. Actual speeds depend on your CPU's memory controller and the kit you use, so check ASRock's memory QVL for tested modules.
Key Features
- Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors but not compatible with AMD Athlon Processors
- Supports DDR4 4733+ (OC)
- Graphics Output: DisplayPort, HDMI
- 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
Full Specifications
| Brand | ASRock |
|---|---|
| Weight | 3000 g |
| USB 2.0 | 1 |
| Platform | Windows 10, Windows 11 |
| CPU Model | Ryzen 3 |
| CPU Socket | Socket AM4 |
| Model Name | B550M-ITX/AC |
| Chipset Type | AMD B550 |
| Model Number | B550M-ITX/AC |
| Chipset Family | AMD B550 |
| Graphics Output | DisplayPort, HDMI |
| Mfr Part Number | B550M-ITX/AC |
| Number of Items | 1 |
| Number of Ports | 11 |
| Total Usb Ports | 10 |
| Processor Socket | Socket AM4 |
| Total PCIe Ports | 1 |
| Total SATA Ports | 4 |
| Compatible Devices | Personal Computer |
| Memory Clock Speed | 2400 MHz |
Ready to buy?
ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors motherboard Mini ITX is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
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