B550M-HDV

Supports 3^rd Gen AMD AM4 Ryzen™ / future AMD Ryzen™ Processors*
6 Power Phase design

*Not compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.

AM4

AMD B550

Dual Channel DDR4 Memory Technology
2 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Matisse) 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 ECC & non-ECC, un-buffered memory*
AMD Ryzen series APUs support 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 ECC & non-ECC, un-buffered memory*
Max. capacity of system memory: 64GB**
Supports Extreme Memory Profile (XMP) memory modules
15μ Gold Contact in DIMM Slots*

**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows^® 32-bit OS. For Windows^® 64-bit OS with 64-bit CPU, there is no such limitation.

DDR4

3200 / 2933 / 2667 / 2400 / 2133 MHz

2 Slots

Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*
DirectX 12, Pixel Shader 5.0
Shared memory default 2GB. Max Shared memory supports up to 16GB.**
Three graphics output options: D-Sub, DVI-D and HDMI
Supports Triple Monitor
Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)
Supports HDR (High Dynamic Range) with HDMI 2.1
Supports HDCP 2.3 with DVI-D and HDMI 2.1 Ports
Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port
Supports Microsoft^® PlayReady

*Actual support may vary by CPU
**The Max shared memory 16GB requires 32GB system memory installed.

7.1 CH HD Audio (Realtek ALC887 Audio Codec)
Supports Surge Protection

AMD Ryzen series CPUs (Matisse)
- 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*
AMD Ryzen series APUs
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*

- 1 x PCI Express 3.0 x1 Slot

*Supports NVMe SSD as boot disks

4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and 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 and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)*

*Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

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
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)

*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.

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

PCIE x1 Gigabit LAN 10/100/1000 Mb/s
Realtek RTL8111H
Supports Wake-On-LAN
Supports Lightning/ESD Protection
Supports Energy Efficient Ethernet 802.3az
Supports PXE

Micro ATX Form Factor: 9.0-in x 7.9-in, 23.0 cm x 20.1 cm
Solid Capacitor design

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

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

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

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.

Microsoft^® Windows^® 10 64-bit