Asrock 90-MXBDH0-A0UAYZ B550M-Itx/Ac Amd B550 Socket 90-MXBDH0-A0UAYZ

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 60A Power Choke
Compared to traditional chokes, ASRock�s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

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.

Dual Band 802.11ac WiFi
No one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with a 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2.

Hyper M.2 (PCIe Gen4 x4)
Supports the next generation PCI Express 4.0 M.2 SSDs, it is capable of perform twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience.

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.

Dual USB 3.2 Gen1 (Type-A + Type-C)
This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen1 ports built on the rear i/o for supporting next generation USB 3.2 Gen1 devices and to deliver up to 5 Gbps data transfer rates.

Dual Graphics Outputs
Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now.

HDMI 4k @60Hz
Supports the most recent HDMI 4K 60Hz graphics output specification. With the larger bandwidth and increased frame rate, the motion on your screen becomes more fluid and less blurry.

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.

BIOS



BIOS type



UEFI AMI


Features



Audio chip



Realtek ALC887


Audio output channels



7.1 channels


Component for



PC


Motherboard chipset



AMD B550


Motherboard chipset family



AMD


Motherboard form factor



mini ITX


Graphics



DirectX version



12.0


Graphics card



Radeon Vega


Graphics card family



AMD


HDCP



Yes


On-board graphics card



Yes


Internal I/O



ATX Power connector (24-pin)



Yes


CPU fan connector



Yes


EPS power connector (8-pin)



Yes


Front panel audio connector



Yes


Number of SATA III connectors



4


RGB LED pin header



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



64 GB


Memory channels



Dual-channel


Memory slots type



DIMM


Non-ECC



Yes


Number of memory slots



2


Supported memory clock speeds



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


Supported memory types



DDR4-SDRAM


Unbuffered memory



Yes


Network



Bluetooth



Yes


Bluetooth version



4.2


Ethernet interface type



Gigabit Ethernet


Ethernet LAN



Yes


LAN controller



Realtek RTL8111H


Wake-on-LAN ready



Yes


Wi-Fi



Yes


Wi-Fi standards



802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)


Other features



Weight



465 g


Package dimensions



Gross Weight (Package, kg)



1.3 kg


Packaging content



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


Product dimensions



Net Weight (Product, kg)



1 kg


Product Depth



17 cm


Product Height



7 cm


Product Width



17 cm


Rear panel I/O ports



DisplayPort version



1.4


DisplayPorts quantity



1


Ethernet LAN (RJ-45) ports



1


HDMI ports quantity



1


PS/2 ports quantity



1


USB 2.0 ports quantity



2


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



3


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



1


Storage controllers



Supported storage drive interfaces



M.2, SATA III


Vendor information



Brand Name


Asrock


Warranty



1 Year(s)