ASRock B550M-HDV AMD AM4 Socket Motherboard

ASRock B550 Micro ATX Motherboard

A feature-rich AMD B550 motherboard designed for 3rd Gen AMD AM4 Ryzen and future AMD Ryzen processors, offering solid power delivery, high-speed DDR4 support, PCIe 4.0 storage, and versatile display connectivity.

Key Features

• CPU Support
• Supports 3rd Gen AMD AM4 Ryzen and future AMD Ryzen processors

• 6 Power Phase Design for stable CPU power delivery

• Memory

• Supports Dual Channel DDR4 memory
• 2 x DDR4 DIMM slots
• Max system memory: 64GB
• Supports ECC & non-ECC, un-buffered memory
• Supports Extreme Memory Profile (XMP) memory modules

• 15µ Gold Contact in DIMM slots

• AMD Ryzen Series CPUs (Matisse)

• 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 APUs

• 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

Power Design & Components

• 6 Power Phase Design
  Featuring sturdy components and smooth power delivery to the CPU, with support for overclocking and enhanced performance and temperature characteristics.

• Premium 50A Power Choke
  ASRock’s premium 50A power chokes improve saturation current compared to traditional chokes, providing enhanced and improved Vcore voltage to the motherboard.

• ASRock Super Alloy

• Premium 50A Power Choke
• Sapphire Black PCB
• High Density Glass Fabric PCB

Storage & Expansion

• PCIe Slots
• With AMD Ryzen Series CPUs (Matisse)
  • 1 x PCI Express 4.0 x16 slot (PCIE1: x16 mode)

• With AMD Ryzen Series APUs

  • 1 x PCI Express 3.0 x16 slot (PCIE1: x16 mode)
  • 1 x PCI Express 3.0 x1 slot

• Storage Interfaces

• 4 x SATA3 6.0 Gb/s connectors
  • Support RAID 0, RAID 1, RAID 10, NCQ, AHCI and Hot Plug

• 1 x Hyper M.2 socket

  • Supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module
  • Supports M.2 PCI Express module up to:
  • Gen4x4 (64 Gb/s) with Matisse
  • Gen3x4 (32 Gb/s)

• ASRock Hyper M.2 (PCIe Gen4 x4)

• Supports next-generation PCI Express 4.0 M.2 SSDs
• Capable of up to twice the speed of previous 3rd generation for fast data transfer

Graphics & Display

• Integrated Graphics (with Ryzen Series APUs)
• Integrated AMD Radeon Vega Series Graphics
• DirectX 12, Pixel Shader 5.0

• Shared memory: default 2GB, max up to 16GB

• Graphics Outputs

• D-Sub
• DVI-D

• HDMI

• Display Support

• Triple Monitor support
• HDMI 2.1: max resolution 4K x 2K (4096 x 2160) @ 60Hz
• DVI-D: max resolution 1920 x 1200 @ 60Hz

• D-Sub: max resolution 1920 x 1200 @ 60Hz

• HDMI Features (HDMI 2.1 Port)

• 4K @ 60Hz support
• Auto Lip Sync
• Deep Color (12bpc)
• xvYCC
• HBR (High Bit Rate Audio)
• HDR (High Dynamic Range)
• HDCP 2.3 (also supported on DVI-D)
• 4K Ultra HD (UHD) playback
• Supports Microsoft PlayReady

Audio & Networking

• Audio
• 7.1 CH HD Audio
• Realtek ALC887 audio codec

• Supports surge protection

• LAN

• PCIe x1 Gigabit LAN 10/100/1000 Mb/s
• Realtek RTL8111H
• Supports Wake-On-LAN
• Lightning/ESD protection
• Energy Efficient Ethernet 802.3az
• PXE support

Connectivity & I/O

• USB
• 6 x USB 3.2 Gen1 ports (2 front via header, 4 rear)
• 2 x USB 2.0 ports (rear)
• 2 x USB 2.0 headers (support 4 USB 2.0 ports, with ESD Protection)

• 1 x USB 3.2 Gen1 header (supports 2 USB 3.2 Gen1 ports, with ESD Protection)

• Internal 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 24-pin ATX power connector
• 1 x 4-pin 12V power connector

• 1 x Front panel audio connector

• Rear Panel I/O

• 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 (ESD Protection)
• 4 x USB 3.2 Gen1 ports (ESD Protection)
• 1 x RJ-45 LAN port (ACT/LINK and SPEED LEDs)
• HD Audio jacks: Line In / Front Speaker / Microphone

BIOS & UEFI

• BIOS
• 256Mb AMI UEFI Legal BIOS with GUI support
• Supports “Plug and Play”
• ACPI 5.1 compliance wake-up events
• Supports jumperfree configuration
• SMBIOS 2.3 support

• CPU, CPU VDDCR_SOC, DRAM, VDDP voltage multi-adjustment

• ASRock UEFI Features

• ASRock Full HD UEFI
• ASRock Instant Flash

Software & Utilities

• Included Software
• ASRock Motherboard Utility (A-Tuning)

• ASRock XFast LAN

• Support CD

• Drivers
• Utilities
• AntiVirus software (trial version)
• Google Chrome browser and toolbar

Accessories

• Quick Installation Guide
• Support CD
• I/O Shield
• 2 x SATA data cables
• 1 x Screw for M.2 socket

Hardware Monitoring

• Temperature Sensing

• CPU, Chassis fans

• Fan Monitoring & Control

• Fan tachometer: CPU, Chassis fans
• Quiet Fan (auto adjusts chassis fan speed by CPU temperature)

• Fan multi-speed control: CPU, Chassis fans

• System Monitoring

• CASE OPEN detection
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore

Specifications

This ASRock B550 Micro ATX motherboard combines a 6 power phase design, premium power components, extensive DDR4 support, PCIe 4.0 M.2 storage, multiple display outputs, 7.1 CH HD audio, and Gigabit LAN—delivering a versatile foundation for AMD Ryzen-based systems.