Asrock 90-MXBDK0-A0UAYZ B550M Pro4 Amd B550 Socket 90-MXBDK0-A0UAYZ

IT’S TIME FOR B550 MOTHERBOARDS
Everything You Need For Computing

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.

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.

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.

BIOS



ACPI version



5.1


BIOS memory size



256 Mbit


BIOS type



UEFI AMI


System Management BIOS (SMBIOS) version



2.3


Expansion slots



Number of M.2 (M) slots



3


PCI Express x1 (Gen 3.x) slots



1


PCI Express x16 (Gen 3.x) slots



1


PCI Express x16 (Gen 4.x) slots



1


Features



Audio chip



Realtek ALC1200


Audio output channels



7.1 channels


Certification



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


Component for



PC


Motherboard chipset



AMD B550


Motherboard chipset family



AMD


Motherboard form factor



micro ATX


PC health monitoring



CPU, Fan, Temperature, Voltage


Windows operating systems supported



Windows 10 x64, Windows 11 x64


Graphics



DirectX version



12.0


HDCP



Yes


Maximum resolution



5120 x 2880 Pixels


Number of displays supported



3


Parallel processing technology support



CrossFireX, Quad-GPU CrossFireX


Internal I/O



12V power connector



Yes


ATX Power connector (24-pin)



Yes


CPU fan connector



Yes


EPS power connector (8-pin)



Yes


Front panel audio connector



Yes


Front panel connector



Yes


Number of chassis fan connectors



4


Number of COM connectors



1


Number of SATA II connectors



6


RGB LED pin header



Yes


TPM connector



Yes


USB 2.0 connectors



2


USB 3.2 Gen 1 (3.1 Gen 1) connectors



2


Logistics data



Harmonized System (HS) code



84733020


Memory



ECC



Yes


Maximum internal memory



128 GB


Memory channels



Dual-channel


Memory slots type



DIMM


Non-ECC



Yes


Number of memory slots



4


Supported memory clock speed (max)



4733 MHz


Supported memory clock speeds



2133, 2400, 2667, 2933, 3200, 3466, 3600, 3733, 3800, 3866, 4000, 4133, 4200, 4266, 4333, 4400, 4466, 4533, 4600, 4666, 4733


Supported memory module capacities



4GB, 8GB, 16GB, 32GB


Supported memory types



DDR4-SDRAM


Unbuffered memory



Yes


Network



Ethernet interface type



Gigabit Ethernet


Ethernet LAN



Yes


LAN controller



Realtek RTL8111H


Wake-on-LAN ready



Yes


Wi-Fi



No


Other features



Weight



465 g


Package dimensions



Gross Weight (Package, kg)



1.3 kg


Packaging content



Cables included



SATA


Drivers included



Yes


Processor



Compatible processor series



3rd Generation AMD Ryzen™ 3, 3rd Generation AMD Ryzen 5, 3rd Generation AMD Ryzen™ 7, 3rd Generation AMD Ryzen™ 9


Maximum number of SMP processors



1


Processor manufacturer



AMD


Processor socket



Socket AM4


Supported processor sockets



Socket AM4


Product dimensions



Net Weight (Product, kg)



1 kg


Product Depth



24.4 cm


Product Height



7 cm


Product Width



24.4 cm


Rear panel I/O ports



DisplayPort version



1.4


DisplayPorts quantity



1


Ethernet LAN (RJ-45) ports



1


HDMI ports quantity



1


HDMI version



2.1


Microphone in



Yes


PS/2 ports quantity



1


USB 2.0 ports quantity



2


USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity



4


USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity



1


USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity



1


VGA (D-Sub) ports quantity



1


Storage controllers



RAID levels



0, 1, 10


RAID support



Yes


Supported storage drive interfaces



M.2, SATA III


Supported storage drive types



HDD & SSD


Vendor information



Brand Name


Asrock


Warranty



1 Year(s)