ASRock B550M-HDV AM4 B550/ USB 3.2 Gen 1/ GLAN mATX

Model
Brand: ASRock
Model: B550M-HDV

Supported CPU
CPU Socket Type: AM4
CPU Type: Supports AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 G-Series / 3000 Series Processors*
* BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASRock website for CPU support list.

Chipsets
Chipset: AMD B550

Memory
Number of Memory Slots: 2x288pin (DDR4)
Memory Standard: DDR4 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 (AMD Ryzen series APUs (Picasso) support)*
Maximum Memory Supported: 64GB
Channel Supported: Dual Channel
ECC Supported: Yes
* For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.
Buffer Supported: Un-buffered

Expansion Slots
PCI Express 4.0 x16: 1 x PCI Express 4.0 x16
* Actual support may vary by CPU.
* Supports NVMe SSD as boot disks.
PCI Express x1     1 x PCI Express 3.0 x1

Storage Devices
SATA 6Gb/s: 4 x SATA 6Gb/s
M.2: 1 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 Gen4x4 (64 Gb/s) (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
SATA RAID: 0/1/10

Onboard Video
Onboard Video Chipset: Supported only by CPU with integrated graphic

Onboard Audio
Audio Chipset: Realtek ALC887
Audio Channels: 7.1 Channels

Onboard LAN
LAN Chipset: Realtek RTL8111H
Max LAN Speed: 10/100/1000Mbps

Rear Panel Ports
Back I/O Ports:
1 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

Internal I/O Connectors
Onboard USB:
2 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)
Other Connectors     1 x SPI TPM Header
1 x COM Port Header
1 x Chassis Intrusion and Speaker Header
1 x CPU Fan Connector (4-pin)*
2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)**
1 x Front Panel Audio Connector
* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
** The Chassis Fan supports the water cooler fan of maximum 1A (12W) fan power.
** CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.

Physical Spec
Form Factor: Micro ATX
LED Lighting: None RGB
Dimensions (W x L): 9.0" x 7.9"
Power Pin:
1 x 24-pin ATX Power Connector
1 x 4-pin 12V Power Connector

Windows 11 Compatibility
Windows 11: Supported

Features
Features:
Unique Feature:
ASRock Super Alloy
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

BIOS:
- 256MB AMI UEFI Legal BIOS with GUI support
- Supports "Plug and Play"
- ACPI 5.1 compliance wake up events
- Supports jumperfree
- SMBIOS 2.3 support
- CPU, CPU VDDCR_SOC, DRAM, VDDP Voltage Multi-adjustment

Software and UEFI:
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
* These utilities can be downloaded from ASRock Live Update & APP Shop.

Support CD:
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Hardware Monitor:
- Temperature Sensing: CPU, Chassis Fans
- Fan Tachometer: CPU, Chassis Fans
- Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis Fans
- Fan Multi-Speed Control: CPU, Chassis Fans
- CASE OPEN detection
- Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

OS:
- Microsoft Windows 10 64-bit / 11 64-bit

Certifications:
- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)