Unbeatable Heatsink Armor

Forged with aluminum alloy heatsink top cover that effectively improves heat dissipation. Underneath its solid, strong cover lie two gaming-required M.2 Key M sockets for high-speed SSDs.

Dual M.2 Sockets for SSD

The Hyper M.2 socket supports PCIe Gen4 x4, while the Ultra M.2 socket is capable of running PCIe Gen3 x4 and SATA 3 mode.

Metal Backplate

The backplate strengthens the motherboard to prevent bending caused by heavy coolers or graphics cards, providing better airflow and enhanced stability.


Dr. MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.

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.

Hi-Density Power Connector

Reduces 23% power loss and decreases the connector's temperature by 22 degrees Celsius.
8+8 12V Power Connectors
24-pin ATX Power Connector

Wi-Fi 6 802.11ax

Welcome to the new Wi-Fi standard! ASRock's B550 motherboards are equipped with next generation Intel® Wi-Fi 6 802.11ax adapters. With speeds of up to 2.4Gbps, these boards will natively operate both 2.4Ghz and 5Ghz simultaneously, offering significant improvement in bi-directional MU-MIMO support as well.

Intel® 2.5G LAN

The 2.5G Ethernet configuration was introduced to support higher bandwidth on widely deployed CAT5e and CAT6 cabling in enterprise and metro area networks. The industry's leading Intel® LAN always provides the best throughput performance, lower CPU utilization, enhanced stability and the ability to deliver the ultimate network experience to users!

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 comprehensive set of controls to direct the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any other 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.

ASRock AMD B550 Series Motherboards