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4.8 star rating
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delivered in 4-5 days
3 year on-site PC warranty*
including parts & labour

ASRock B550 Pro4 AMD Socket AM4 Motherboard

CCL Code: MBD2874
|
Manufacturer Code: 90-MXBCZ0-A0UAYZ
| Manufacturer: ASRock
|

Key Features:

  • Socket AM4
  • AMD B550 Chipset
  • 6 x SATA & 6 x USB Ports
  • DDR4 (max 128GB, 4 slots)
  • VGA and HDMI
  • ATX Form Factor

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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

ASRock motherboards deliver stunning performance and superior aesthetics to rule your own colorful lighting way! ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Devices can be synchronized across the Polychrome RGB Sync-certified accessories as well.

*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.

Dr. MOS

Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Intelligently delivering higher current and driving up to 50A continuous current for each phase, thus providing improved thermal result and superior performance.

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.

Dual Graphics Outputs

Complete with two types of most used connectors! Packed with a HDMI + D-SUB combo, you have more graphics output options now.

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, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi
  • Graphics Output Options: HDMI, 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), 6 USB 3.2 Gen1 (2 Front, 4 Rear)
  • 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
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 1 x USB 3.0 header (supports 2 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
1 x 4-pin EPS
Other Connectors 1 x M.2, Socket 3, M Key (Type 2260/2280/22110)
1 x M.2, Socket 3, M Key (Type 2242/2260/2280)
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)
2 x PCI Express 3.0 x1

Graphics Device

Integrated Graphics Supported Yes

Sound

Integrated Sound Realtek ALC1200

Warranty

Warranty 3 Years

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 ATX Motherboard
In The Box B550 Pro4 Motherboard
Quick Installation Guide
Support CD
I/O Shield
2 x SATA Data Cables
3 x Screws for M.2 Sockets
1 x Standoff for M.2 Socket
Width 305 mm
Length 244 mm

Key Features

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
Firewire No
Wireless Network No
Memory Channel Dual
On-board Audio Type 7.1
Number of SATA Ports 6 port(s)
Number of USB Ports 6 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 No
Motherboard Form Factor ATX
Motherboard Power Connectors 4 + 8-Pin
Motherboard Chipset AMD B550
Thunderbolt No
Motherboard Model ASRock B550 Pro4

Item Details

Manufacturer ASRock
Manufacturer Code 90-MXBCZ0-A0UAYZ
Alternative Part Number B550 PRO4
EAN 4710483931482
Condition New
Warranty

Warranty Information

Warranty 3 Years

Manufacturer Information

Manufacturer ASRock
Manufacturer Code 90-MXBCZ0-A0UAYZ
Questions and Answers

Do you have you a question about the ASRock B550 PRO4 AMD Socket AM4 B550 Chipset ATX Motherboard?

Q: What Bios Version is installed on this mobo? Is it Ryzen 5000 compatible?
Answer by jai on 18th December 2020
Does this support Ryzen 5000 out of the box just got it and dont have a ryzen 3000 cpu to flash bios
1 customer found this answer helpful.
Post Answer
Reviews
5 / 5 3 reviews

Dave Forber

8 months ago

Seems a solidly built motherboard with good features. Definitely worth the extra over a mATX Gigabyte DS3H for the extra room and more sensible layout. Seems reliable, nice UEFI interface, stable, would recommend.

Frazer Mackie

8 months ago

Great bang for buck

Mikolaj

11 months ago

Works very well