AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, 1 Gb Ethernet, HDMI/D-Sub/DVI, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB headers support
- AMD AM4 socket_ Ready for 3rd Gen AMD Ryzen™ Processors
- Comprehensive cooling_VRM heatsink, PCH heatsink, and Fan Xpert 2+
- Ultrafast connectivity_Dual M.2, PCIe 4.0, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A
- Aura Sync RGB_ Onboard addressable Gen 2 header for RGB LED strips, easily synced with Aura Sync-capable hardware
ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work - maximizing your productivity.
Cooler by Design
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
Build on a Solid Foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.
VRM Heatsink and Thermal Pads
A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.
PCIe 4.0 M.2 (up to 64 Gbps)
Achieve speed with onboard M.2
PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.
Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface that let you customize your system to create a uniquely personal look.
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Separate Layer for Left and Right Tracks
Ensures minimal crosstalk between audio paths.
Premium Japanese Capacitors
Premium parts provide an immersive sound signature, with exception
1 x PCIe 4.0 x16 (x16 mode)
2 x PCIe 3.0 x1
4 x SATA III
1 x M.2 (2242/2260/2280/22110) - SATA & PCIe
1 x M.2 (2242/2260/2280) - SATA & PCIe
RAID 0, 1, 10
Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC
USB Ports Supported
2 x USB 3.2 Gen2 Type-A (at back)
6 x USB 3.2 Gen1 (4 at back, 2 at mid-board)
4 x USB 2.0 (at mid-board)
Back Panel I/O Ports
1 x PS/2 keyboard/mouse
1 x DVI-D
1 x D-Sub
1 x HDMI
1 x LAN (RJ45)
2 x USB 3.2 Gen2 Type-A
4 x USB 3.2 Gen 1 Type-A
3 x Audio jacks
Internal I/O Connectors
1 x CPU Fan
1 x CPU OPT Fan
2 x Chassis Fan
2 x Aura RGB Strip
1 x Addressable Gen2
1 x USB 3.2 Gen1
2 x USB 2.0
2 x M.2 Socket 3 with M key
1 x SPI TPM
4 x SATA 6Gb/s
1 x S/PDIF out
1 x 24-pin EATX
1 x 8-pin EATX 12V
1 x Front audio
1 x Clear CMOS jumper
1 x System panel
1 x COM port
1 x Speaker
for CPU support
*Note: not compatible with Ryzen 5 3400G & Ryzen 3 3200G CPUs
1 x VGA
1 x DVI-D
1 x HDMI
DDR4 (Dual Channel)
4 x DIMM
RAM Speeds3rd Gen AMD Ryzen CPUs_
Next Gen AMD Ryzen PRO CPUs_
Integrated Graphics Processor*
Graphics specifications may vary between CPU types
2 x SATA 6Gb/s cables
1 x Supporting DVD
1 x M.2 SSD screw package