Asrock B550M-ITX/ac AMD B550 Socket AM4 mini ITX

SKU
90-MXBDH0-A0UAYZ
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AMD B550, 2 x DDR4 DIMM, 7.1 CH HD Audio, Gigabit LAN, 802.11ac WiFi, Bluetooth 4.2, Mini-ITX
  • Supports 3rd Gen AMD AM4 RyzenTM / Future AMD RyzenTM Processors
  • Supports DDR4 4733+ (OC)
  • 1 PCIe 4.0 x16
  • Graphics Output: DisplayPort, HDMI
  • 7.1 CH HD Audio (Realtek ALC887 Audio Codec)
  • 4 SATA3, 1 Hyper M.2 (PCIe Gen4 x4 & SATA3)
  • 6 USB 3.1 Gen1 (2 Front, 3 Rear Type-A, 1 Rear Type-C)
  • Realtek Gigabit LAN
  • Intel® 802.11ac WiFi + BT 4.2
More Information
Processor socket Socket AM4
Component for PC
Motherboard form factor Mini ITX
Compatible processor series AMD Ryzen 3000 Series
SKU 90-MXBDH0-A0UAYZ
EAN 4710483931727
Manufacturer Asrock
Availability In Stock

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.

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.
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
On-board graphics cardYes
Motherboard form factormini ITX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Audio output channels7.1 channels
Motherboard form factormini ITX
Component forPC
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 3000 Series
Maximum number of SMP processors1
Processor socketSocket AM4
Memory
Number of memory slots2
Memory slots typeDIMM
Supported memory typesDDR4-SDRAM
Memory channelsDual-channel
Supported memory clock speeds2133,2400,2667,2933,3200,3466,3600,3733,3800,3866,4000,4133,4200,4266,4333,4400,4466,4533,4600 MHz
Maximum internal memory64 GB
Unbuffered memoryYes
ECC сompatibilityECC & Non-ECC
Storage controllers
Supported storage drive interfacesM.2, SATA III
Graphics
On-board graphics cardYes
HDCPYes
Graphics card familyAMD
Graphics cardRadeon Vega
DirectX version12.0
Internal I/O
USB 3.2 Gen 2 (3.1 Gen 2) connectors0
Supported storage drive interfacesM.2, SATA III
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
Number of SATA III connectors4
Number of SATA II connectors0
Number of Parallel ATA connectors0
Front panel audio connectorYes
EPS power connector (8-pin)Yes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity3
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity0
DisplayPort version1.4
USB 2.0 ports quantity2
eSATA ports quantity0
VGA (D-Sub) ports quantity0
PS/2 ports quantity1
Firewire (IEEE 1394) ports0
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DVI-D ports quantity0
DisplayPorts quantity1
Network
Ethernet LANYes
Wi-FiYes
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Wake-on-LAN readyYes
LAN controllerRealtek RTL8111H
Ethernet interface typeGigabit Ethernet
BluetoothYes
Bluetooth version4.2
Features
Motherboard chipset familyAMD
Motherboard chipsetAMD B550
Audio output channels7.1 channels
Motherboard form factormini ITX
Component forPC
Audio chipRealtek ALC887
Harmonized System (HS) code84733020
BIOS
BIOS typeUEFI AMI
Video
HDCPYes
Graphics card familyAMD
Graphics cardRadeon Vega
DirectX version12.0
Software
Drivers includedYes
Logistics data
Harmonized System (HS) code84733020
Weight & dimensions
Height70 mm
Weight465 g
Width170 mm
Depth170 mm
Packaging content
Drivers includedYes
Other features
Height70 mm
Weight465 g

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SKU
90-MXBDH0-A0UAYZ
90MB14U0-M0EAY0
90MB14S0-M0EAY0
90MB15J0-M0EAY0
90MB19U0-M0EAY0
90MB19V0-M0EAY0
Manufacturer
Asrock
ASUS
ASUS
ASUS
ASUS
ASUS
Processor manufacturer
AMD
AMD
AMD
AMD
AMD
AMD
Motherboard form factor
mini ITX
ATX
ATX
ATX
ATX
ATX
Processor socket
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Socket AM4
Supported memory types
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
DDR4-SDRAM
Component for
PC
N/A
PC
PC
PC
PC
Number of memory slots
2 to 3
4 to 6
4 to 6
4 to 6
4 to 6
4 to 6