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ASRock B550M Pro4 mATX Motherboard for AMD AM4 CPUs

ASRock B550M Pro4 mATX Motherboard for AMD AM4 CPUs

CCL Code: MBD2870

Discontinued

ASRock B550M Pro4 mATX Motherboard for AMD AM4 CPUs

90-MXBDK0-A0UAYZ

Key Features:

  • mATX Form Factor
  • AMD B550 Chipset
  • Socket AM4
  • DDR4 (Max: 128GB / 4 slots)
  • 2 x M.2 & 8 x USB & 6 x SATA
  • HDMI, Display Port and VGA
CCL Code: MBD2870

Discontinued

Sorry, this product has been discontinued. We have found some similar products below.

Overview

Nahimic Audio

Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.

The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.

8 Power Phase Design

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

Premium 50A Power Choke

Compared to traditional chokes, ASRock’s premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

2oz Copper PCB

2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!

RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB

This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

*The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters.
*The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.

A SOLID M.2-SOLUTION PERFORMER

Dual M.2 For SSD, Supports Type 22110 M.2

Ready for higher capacity and even faster Type 22110 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.

M.2 Armors

Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature.

Reinforced Steel Slot [PCIe 4.0 Version]

The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:

  • Extra anchor points
  • Stronger latch
  • Ensure signal stability
  • Make sure heavy graphics cards to be well-installed.

Dual USB 3.2 Gen2 (Type-A + Type-C)

This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates.

M.2 (KEY E) For WiFi

Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.

*Wi-Fi module is not included.

Post Status Checker

An easy troubleshooting tool that shows the CPU / DRAM / VGA / BOOT operation every time you start up the system. Post Status Checker is an fast and easy way to identify the source of the problem.

Super Alloy Motherboard

XXL Aluminum Alloy Heatsink

Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.

Sapphire Black PCB

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper PCB

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.

3 Graphics Outputs

Complete with all three types of most used connectors! Packed with a D-Sub + DisplayPort + HDMI combo. Plus the HDMI port supports 4K resolution.

*Supported only with processors with integrated graphics. Please check CPU support list from each motherboard webpage.

Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.

Live Update & APP Shop

ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

Main Features

  • Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors
  • 8 Power Phase Design, Digi Power
  • Supports DDR4 4733+ (OC)
  • 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFi
  • Graphics Output Options: HDMI, DisplayPort, D-Sub
  • AMD CrossFireX
  • 7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio
  • 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
  • 2 USB 3.2 Gen2 (Rear Type A+C), 8 USB 3.2 Gen1 (4 Front, 4 Rear)
  • Realtek Gigabit LAN
Specifications

CPU

CPU Socket Socket AM4
CPU Brand AMD
Installed Processors (Max) 0 (1)
Supported Processor Manufacturer AMD
Supported Processors 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors *Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.
64-bit Support Yes
Socket AM4

Rear Panel I/O Ports

USB Ports 1 x USB 3.1 Type-C
1 x USB 3.1 Type-A
4 x USB 3.0
2 x USB 2.0
DisplayPorts 1 x DisplayPort 1.4
HDMI Port 1 x HDMI 2.1
VGA Port 1 x D-Sub (VGA)
Keyboard/Mouse Combo Port 1 x PS/2
RJ-45 Ports 1 x RJ-45
Audio Line In Ports 1 x 3.5mm Jack
Audio Line Out Ports 1 x 3.5mm Jack
Microphone In Port 1 x 3.5mm Jack

Internal I/O Connectors

SATA Connectors 6 x SATA III
USB Connectors 2 x USB 3.0 headers (supports 4 ports)
2 x USB 2.0 headers (supports 4 ports)
Speaker 1 x Speaker header
Front Panel Connectors 1 x Front Panel
1 x Front Audio
Cooling Fan Support 1 x CPU fan header
1 x CPU/Water Pump fan header
4 x Chassis/Water Pump fan headers
Serial Connectors 1 x COM header
TPM Header 1 x SPI TPM header
Power Connector Port 1 x 20+4-pin ATX
1 x 4+4-pin EPS
Other Connectors 2 x M.2, Socket 3, M Key (Type 2280)
1 x M.2, Socket 1, E Key (Type 2230) for WiFi module
2 x RGB LED headers
2 x Addressable LED headers

Memory

Memory Bus Speed 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 MHz
Memory Type DDR4
Maximum RAM 128 GB
Memory Slot 4 x DIMM

Motherboard

Chipset Manufacturer AMD
Northbridge B550
RAID Supported Yes
RAID Format RAID 0, 1, 10
SATA Supported Yes

Expansion

Number of PCI Express Slots 1 x PCI Express 4.0 x16
1 x PCI Express 3.0 x16 (@ x4)
1 x PCI Express 3.0 x1

Graphics Device

Integrated Graphics Supported Yes

Warranty

Warranty 3 Years

Sound

Integrated Sound Realtek ALC1200

Network

Integrated Network Realtek RTL8111H
Network Speeds Supported 10/100/1000 Mbps
Wireless LAN No
Bluetooth No

System Requirements

Operating Systems Supported Microsoft Windows 10 64-bit

System

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, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage Multi-adjustment
Software Included (may be trial or restricted) Yes
Drivers Yes
SLi/Crossfire Features Supports AMD Quad CrossFireX and CrossFireX

Physical

Form Factor MicroATX Motherboard
In The Box B550M PRO4 Motherboard
Quick Installation Guide
Support CD
I/O Shield
2 x SATA Data Cables
2 x Screws for M.2 Sockets
Width 244 mm
Length 244 mm

Key Features

Firewire No
Wireless Network No
Motherboard Width 244 mm
Motherboard Height 244 mm
mSATA Supported No
U.2 Supported No
Memory Channel Dual
On-board Audio Type 7.1
Number of SATA Ports 6 port(s)
Number of USB Ports 8 port(s)
SATA III Support Yes
USB 3.0 Support Yes
Multi GPU Support ATi CrossFire
VGA Connection Yes
DVI Connection No
HDMI Connection Yes
DisplayPort Connection Yes
Motherboard Form Factor mATX
Motherboard (EPS) Power Connectors 4+4-Pin
Motherboard Chipset AMD B550
Thunderbolt No
Motherboard Model ASRock B550M Pro4
USB 3.1 Support Yes
Internal USB3.0 Header Yes
M.2 Support Yes
On-board RGB Control ASRock RGB LED
Memory Speed 4733 MHz
RGB Header Type 3-Pin ARGB
Addressable RGB Yes
Internal USB Type-C Header No
Power Requirement (auto) 60 W
Max Memory Speed Supported (Non-overclocked) 3200 MHz
Max Memory Speed Supported (overclocked) 4733 MHz
CPU Power Pins (female) 8
Total M.2 Slots 2
Maximum NVMe M.2 ports 2
Maximum SATA M.2 ports 1
SATA ports 6
No. of front USB2.0 ports supported 4
No. of front USB3.0 ports supported 4

Item Details

Manufacturer ASRock
Manufacturer Code 90-MXBDK0-A0UAYZ
Alternative Part Number B550M PRO4
EAN 4710483931598
Condition New
Warranty

Warranty Information

Warranty 3 Years

Manufacturer Information

Manufacturer ASRock
Manufacturer Code 90-MXBDK0-A0UAYZ
Reviews
5.0 / 5 3 reviews

Dhillon

December 2020

For the price, best b550m, suitable for overclocking a ryzen 5 3600

RS

August 2020

Relatively future proof in that it will support Ryzen 4000 series when they come out. Support for fast memory, a pair of M2 drives, Everything worked out of the box. So far, so good.

Nigel Rouse

August 2020

Great motherboard for the price, runs well with a ryzen 7 3700x.