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Green micro ATX board with silver AM4 socket and black heatsinks

ASRock

ASRock B550M-HDV AMD motherboard

SKU CH-ANKQ-628SE MPN B550M-HDV

Micro-ATX board for AM4 Ryzen 3000 to 5000 series with PCIe 4.0 x16, Hyper M.2 Gen4, four SATA 6Gb/s and 7.1-channel audio

  • ProcessorSupports AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 30
  • ChipsetAMD B550
  • Form factorMicro ATX
  • CPU socketAM4
  • Memory slot count2 × 288pin (DDR4)
  • Supported memoryDDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) /

Model B550M-HDV

  • Supports Ryzen 3000 to 5000 series processors on AM4 socket
  • Dual-channel DDR4 up to 4733 MHz overclocked with 64 GB maximum capacity
  • PCIe 4.0 x16 slot plus Hyper M.2 Gen4 x4 for high-speed NVMe storage
  • 1-channel Realtek ALC887 audio with HDMI, DVI-D and D-Sub video outputs
  • 6-phase power design and Gigabit LAN for stable performance

AM4 Micro-ATX Platform for Ryzen 5000 Series

The ASRock B550M-HDV is a micro-ATX motherboard built around the AMD B550 chipset for AM4 socket processors. It supports Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series desktop CPUs. A BIOS update may be required before installing a Zen 3 Ryzen 5000 series processor. The board targets builders who need a compact foundation for current-generation AMD performance.

Six-Phase Power and Legacy Video Outputs

A six-phase power phase design delivers smooth current to the CPU for stable operation. The rear panel provides HDMI, DVI-D and D-Sub ports, enabling video output from Ryzen G-Series APUs and compatibility with older displays. Connectivity includes four rear USB 3.2 Gen1 ports, two front-panel USB 3.2 Gen1 headers, Gigabit LAN and 7.1-channel audio driven by the Realtek ALC887 codec.

Single Hyper M.2 Slot with PCIe 4.0 x4

Storage centres on one Hyper M.2 socket accepting 2242, 2260 and 2280 modules. With Vermeer or Matisse CPUs it runs at PCIe 4.0 x4 (64 Gb/s); with Cezanne, Renoir or Picasso APUs it operates at PCIe 3.0 x4 (32 Gb/s). SATA 6.0 Gb/s M.2 drives are also supported. Four SATA 6Gb/s ports and RAID 0, 1, 10 round out the storage options.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $61.99
Cheaper than about 88% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameASRock
Model nameB550M-HDV
Processor
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count2 × 288pin (DDR4)
Supported memoryDDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series APUs (Cezanne & Renoir) support)*
DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series CPUs (Vermeer & Matisse) support)*
DDR4 3533+(OC) / 3466(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 (
Max supported RAM64 GB
Memory channelsDual Channel
Memory profilesIntel XMP 2.0
ECC supportYes
* For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots1 x Hyper M.2 Socket, supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4 × 4 (64 Gb/s) (with Vermeer, Matisse) or Gen3 × 4 (32 Gb/s) (with Cezanne, Renoir and Picasso)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
SATA and RAID support0/1/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipRealtek ALC887
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek RTL8111H
Maximum network speed1 Gbit/s
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
* Actual support may vary by CPU.
* Supports NVMe SSD as boot disks.
PCIe x1 slots1 x PCI Express 3.0 x1
Rear panel ports1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x DVI-D Port
1 x HDMI Port
2 x USB 2.0 Ports (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB headers2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Power
Power connectors1 × 24-pin ATX Power Connector
1 × 4-pin 12 V Power Connector
Size & build
Form factorMicro ATX
Width and length9.0 in × 7.9 in
Shipping weight0.84 kg
Package size330 × 286 × 58 mm
Compatibility
Windows 11 supportSupported
In the box
In the boxAccessories:
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 1 x Screw for M.2 Socket
More details
LightingNone RGB

Other versions of this model

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Questions about this item

What PCIe generation does the B550M-HDV's primary x16 slot use, and what bandwidth does that cap at?

The primary slot runs at PCIe 4.0 x16, delivering up to 64 Gb/s when paired with a Vermeer or Matisse CPU. With Cezanne, Renoir or Picasso CPUs it falls back to PCIe 3.0 x16 at 32 Gb/s.

What case and cooler clearances does this micro ATX board need?

The board measures standard micro ATX dimensions. It requires a case with matching standoffs, an AM4-compatible cooler that clears the 6-phase VRM heatsink, and enough height for 288-pin DDR4 modules.

How is the BIOS updated for Ryzen 5000 support, and which step is often missed?

Download the latest BIOS from the ASRock site, copy it to a FAT32 USB drive, and use the Instant Flash utility in the UEFI. The step many miss is renaming the file exactly as the utility expects before starting the flash.

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