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ASRock B550M PRO4 Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors Motherboard
ASRock

ASRock B550M PRO4 Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors Motherboard

Bottom line: The ASRock B550M PRO4 Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ ($89.99 on Amazon as of 2026-10-20 20:20 UTC): Hyper M.2 slot runs full PCIe Gen4 x4 for top-tier NVMe speeds; main trade-off: not compatible with AMD Athlon processors at all.

$89.99

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Buy on Amazon — $89.99 Compare to similar motherboards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Hyper M.2 slot runs full PCIe Gen4 x4 for top-tier NVMe speeds
  • ✓ 6 SATA3 ports plus a second M.2 (Gen3 x2/SATA3) for large drive arrays
  • ✓ 8 power phase Digi Power VRM handles Ryzen 5000 chips
  • ✓ Realtek ALC1200 codec with 7.1 CH HD audio, above the usual ALC892 tier

Cons

  • ✗ Not compatible with AMD Athlon processors at all
  • ✗ Second M.2 is only Gen3 x2, half the lanes of a normal Gen3 slot
  • ✗ Micro-ATX layout limits expansion slots versus full ATX B550 boards
  • ✗ DDR4 4733+ needs overclocking and a memory kit ASRock has validated

Manufacturer description

It supports 3rd Gen AMD AM4 Ryzen processors plus Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series desktop chips, so you can drop in a Ryzen 5 5600 or a 5700G without hunting for a BIOS-compatible CPU first. Storage is the standout: one Hyper M.2 slot running PCIe Gen4 x4, a second M.2 at Gen3 x2/SATA3, and 6 SATA3 ports, which is more drive headroom than most boards at this price. Memory tops out at DDR4 4733+ (OC), and an 8 power phase Digi Power design gives the VRM room to handle a 5000-series chip. Rear I/O includes 2 USB 3.2 Gen2 ports (Type A plus Type C) and 8 USB 3.2…

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SpecPicks Verdict

SpecPicks scored ASRock B550M PRO4 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

Does the ASRock B550M PRO4 support Ryzen 5000 CPUs out of the box?

It supports AMD AM4 socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series desktop processors. Boards shipped recently usually arrive on a current BIOS, but check the listing or ASRock's CPU support page for the revision you receive.

Will an AMD Athlon CPU work in this board?

No. ASRock explicitly lists the B550M PRO4 as not compatible with AMD Athlon processors. Plan on a Ryzen 3000-series or newer AM4 chip.

How fast is the M.2 storage on this motherboard?

The Hyper M.2 slot runs PCIe Gen4 x4, the full-speed interface for current NVMe drives. A second M.2 slot runs PCIe Gen3 x2 or SATA3, so use the Hyper slot for your boot drive.

How many drives can I connect in total?

Six SATA3 ports plus two M.2 slots, for up to eight drives. Note the second M.2 shares bandwidth modes with SATA3, so check ASRock's manual for lane-sharing before filling every port.

Is the onboard audio good enough to skip a sound card?

It uses a Realtek ALC1200 codec with 7.1 CH HD audio and Nahimic Audio, including a Sound Tracker radar that shows which direction dominant game sounds come from.

Key Features

  • Supports DDR4 4733+ (OC)
  • Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors*
  • Not compatible with AMD Athlon Processors.
  • 8 Power Phase Design, Digi Power

Full Specifications

BrandASRock
Weight3000 g
PlatformWindows 10, Windows 11
CPU ModelUnknown
CPU SocketSocket AM4
Model NameB550M PRO4
Chipset TypeAMD B550
Model NumberB550M PRO4
Chipset FamilyAMD B550
Mfr Part NumberB550M PRO4
Number of Items1
Number of Ports18
Total Usb Ports14
Processor SocketSocket AM4
Total PCIe Ports2
Total SATA Ports2
Compatible DevicesPersonal Computer
Memory Clock Speed4733 MHz
Warranty Description3 years
Compatible ProcessorsAMD 3rd Generation Ryzen

Ready to buy?

ASRock B550M PRO4 Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors Motherboard 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.

Buy on Amazon — $89.99

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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ASRock B550M PRO4 Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors Motherboard
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