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ASRock B550 Rock WiFi 90-MXBV20-A0UAYZ ATX Motherboard AMD AM4 DDR4 PCIe 4.0 3x M.2 2.5GbE Wi-Fi 6E Bluetooth 5.3

Brand:
ASRock
ASRock B550 Rock WiFi AM4 ATX Motherboard
ASRock B550 Rock WiFi 90-MXBV20-A0UAYZ ATX Motherboard AMD AM4 DDR4 PCIe 4.0 3x M.2 2.5GbE Wi-Fi 6E Bluetooth 5.3
€149.35 inc. VAT
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90-MXBV20-A0UAYZ
€125.50 €139.45
€149.35 inc. VAT
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Product Code
03:280390
EAN Code
4711581494732
Manufacturer
ASRock
Features
Bluetooth, Wireless
Quick Specs
Socket / Chipset
AMD AM4 / B550
Memory
4x DDR4, up to 128GB
Storage
3x M.2 (1x PCIe 4.0) + 4x SATA
Networking
2.5GbE + Wi-Fi 6E + BT 5.3
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ASRock B550 Rock WiFi

Refreshed AM4 ATX board with PCIe 4.0, three M.2 slots, 2.5GbE and Wi-Fi 6E for Ryzen 5000 upgrades.
AM4 / B550PCIe 4.0 GPU + M.22.5GbE LANWi-Fi 6E + BT 5.3

The ASRock B550 Rock WiFi is an ATX motherboard for AMD Ryzen processors on socket AM4, ideal for building or upgrading a DDR4 gaming or productivity PC around a Ryzen 5000 CPU. This listing is part number 90-MXBV20-A0UAYZ.

Launched in 2026, it brings modern connectivity to the mature AM4 platform: PCIe 4.0 x16 graphics, three M.2 slots (one PCIe 4.0 x4), Realtek 2.5GbE LAN and Wi-Fi 6E with Bluetooth 5.3. Four DDR4 slots support up to 128GB, and a pre-installed I/O shield plus tool-less SSD mounting make assembly easy. Typically in stock with fast delivery across Cyprus.

Compatibility Note
Socket AM4 only — supports Ryzen 5000, 5000G, 4000G, 3000 and 3000G. Not compatible with AM5 / Ryzen 7000+ or DDR5. PCIe 4.0 on the x16 slot and M2_1 requires a Ryzen 3000/5000 CPU; with 4000G/5000G APUs they run at PCIe 3.0. The HDMI output works only with APUs (G-series). M2_2 is PCIe 3.0 x4/SATA and M2_3 is PCIe 3.0 x2.

Best For

✓Ryzen 5000 gaming builds
✓Upgrading older AM4 systems
✓DDR4 budget-performance PCs
✓2.5GbE home networks
✓Wi-Fi 6E wireless desks
✓RGB-themed builds

Key Features

 
PCIe 4.0 performance
Gen4 x16 graphics slot and Gen4 x4 M.2 (Hyper) slot with Ryzen 3000/5000 CPUs.
 
Three M.2 slots
Gen4 x4 + Gen3 x4/SATA + Gen3 x2 for plenty of fast NVMe storage without cables.
 
Modern networking
Realtek Dragon RTL8125BG 2.5GbE plus Wi-Fi 6E (6 GHz) and Bluetooth 5.3, antennas included.
 
Easy building
Pre-installed I/O shield, tool-less SSD install, Post Status Checker LEDs and Polychrome RGB with SignalRGB.

Technical Specifications

Identification
Brand ASRock
Model B550 Rock WiFi
Part Number 90-MXBV20-A0UAYZ
EAN / GTIN 4711581494732
MPN 90-MXBV20-A0UAYZ
Platform
Socket AMD AM4
Chipset AMD B550
Supported CPUs AMD Ryzen 5000 / 5000G / 4000G / 3000 / 3000G
Form factor ATX, 30.5 x 24.4 cm, 2oz copper PCB
Memory
Slots 4x DDR4 DIMM, dual channel, ECC & non-ECC
Maximum capacity 128GB
Speed DDR4-3200 native; up to 4533+ (OC) with Ryzen 3000/5000, 4733+ (OC) with 4000G/5000G
Expansion & Storage
PCIE1 PCIe 4.0 x16 (Ryzen 3000/5000); Gen3 x16 with 4000G/5000G
PCIE2 PCIe 3.0 x2 (x16 size)
M.2 M2_1 PCIe 4.0 x4 (Hyper) · M2_2 PCIe 3.0 x4 / SATA · M2_3 PCIe 3.0 x2 — all 2280
SATA 4x SATA 6Gb/s, RAID 0/1/10
Connectivity
LAN 2.5GbE, Realtek Dragon RTL8125BG
Wireless Wi-Fi 6E 2x2 (2.4/5/6 GHz) + Bluetooth 5.3, 2 antennas included
Rear I/O 1x HDMI, 1x USB 3.2 Gen1 Type-C, 4x USB 3.2 Gen1 Type-A, 3x USB 2.0, RJ-45, 2 antenna ports, 3 audio jacks
Front USB headers 1x USB 3.2 Gen1 Type-C, 2x USB 3.2 Gen1, 4x USB 2.0
Video output HDMI (4K@60Hz) — APU required
Audio 7.1 CH HD Audio, Realtek ALC897
Power & Build
Power design 10-phase (8+2)
Power connectors 24-pin ATX + 8-pin 12V
Headers SPI TPM, 1x RGB, 3x addressable RGB, 2x CPU fan, 4x chassis fan
BIOS 256Mb AMI UEFI
In the box 2x Wi-Fi antennas, 2x SATA cables

Frequently Asked Questions

Does the ASRock B550 Rock WiFi support Ryzen 7 5800X3D?
It supports Ryzen 5000 series processors on AM4. Check ASRock’s CPU support list for the specific model and required BIOS version.
Is the B550 Rock WiFi suitable for a PCIe 4.0 graphics card?
Yes. With a Ryzen 3000 or 5000 CPU, the main x16 slot runs at PCIe 4.0 x16.
What is the difference between the B550 Rock WiFi and the GIGABYTE A520M S2HP?
The B550 Rock WiFi adds PCIe 4.0, three M.2 slots, four DDR4 slots, 2.5GbE and Wi-Fi 6E. The A520M S2HP is a simpler Micro-ATX board with PCIe 3.0, one M.2 slot and Gigabit LAN.
What do I need to know before buying the B550 Rock WiFi (90-MXBV20-A0UAYZ)?
It is AM4 with DDR4 only, has a single HDMI output (for APUs), and needs a standard ATX case.
Singular Expert Insight
The B550 Rock WiFi is a smart way to extend the life of AM4: a Ryzen 7 5700X or 5800X3D on this board still makes a very capable gaming PC with cheaper DDR4. If you are starting fresh and want the longest upgrade path, AM5 boards like the GIGABYTE X870E EAGLE WIFI7 are the better long-term buy. Add memory from our memory (RAM) range.

Buyer's Guide

Buy it if
You want a modern AM4 board with PCIe 4.0, 2.5GbE and Wi-Fi 6E for a Ryzen 5000 build or upgrade.
Skip it if
You plan to use Ryzen 7000/9000 CPUs or DDR5 memory.
Also consider
GIGABYTE A520M S2HP (budget mATX) or GIGABYTE X870E EAGLE WIFI7 (AM5 platform).

Features - ASRock - 90-MXBV20-A0UAYZ

CPU Socket
  • Socket AM4
Interface
  • USB Type-C,
  • M.2,
  • SATA,
  • Ethernet,
  • Bluetooth,
  • WIFI
Port Speed
  • 2.5 Gbps
More Details
Product Code
03:280390
EAN Code
4711581494732
Manufacturer
ASRock
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