ASUS Prime B550 series is designed to unleash the full potential of AMD Ryzen processors. Prime B550 series motherboards feature high-quality power delivery, comprehensive cooling solutions, and intelligent tuning options. The Prime series offers a range of performance tuning options with intuitive software for both everyday users and DIY PC builders.

• AM4 socket: For AMD Ryzen 5000 series / 5000 G series / 4000 G series / 3000 series processors
• Comprehensive cooling: VRM heatsink, PCH heatsink, support for hybrid fans, and Fan Xpert 2+ utility
• Fast connections and interfaces: M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
• Aura Sync support: RGB header and Gen 2 RGB header pins enable synchronized LED lighting across a wide range of compatible PC components, including RGB strips

Features:

• Chipset: AMD B550
• Processor socket: AM4
• Processor support: AMD Ryzen 5000 / 5000 G / 4000 G / 3000
• Motherboard size: mATX
• Memory slots (pcs): 4
• Memory type: DDR4
• Maximum memory capacity (GB): 128
• Network interfaces: Realtek 1 Gb Ethernet, Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 2×2, Bluetooth v5.2
• Sound card: Realtek 7.1 Surround Sound High Definition Audio CODEC

Expansion slots:

• AMD Ryzen 5000, 3000 Series
  1 x PCIe 4.0 x16 slot (supports x16 mode)
• AMD Ryzen 5000 G, 4000 G Series
  1 x PCIe 3.0 x16 slot (supports x16 mode)
• AMD B550 Chipset

  2 x PCIe 3.0 x1 slots

Storage connections:

• 4 x SATA 6 Gb/s ports
• 2 x M.2 slots
• AMD Ryzen 5000, 3000 Series
  M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)
• AMD Ryzen 4000 G Series
  M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 & SATA modes)
• AMD B550 Chipset
  M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA modes)

Rear panel connections:

• 2 x USB 3.2 Gen 2 ports (2 x Type-A)
• 4 x USB 3.2 Gen 1 ports (4 x Type-A)
• 1 x D-Sub port
• 1 x DVI-D port
• 1 x HDMI port
• 1 x Wi-Fi Module
• 1 x Realtek 1 Gb Ethernet port
• 3 x Audio jacks
• 1 x PS/2 Keyboard/Mouse combo port

Internal connections:

• Fan and Cooling related
• 1 x 4-pin CPU Fan header
• 1 x 4-pin CPU OPT Fan header
• 2 x 4-pin Chassis Fan headers
• Power related
• 1 x 24-pin Main Power connector
• 1 x 8-pin +12V Power connector
• Storage related
• 2 x M.2 slots (Key M)
• 4 x SATA 6 Gb/s ports
• USB
• 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
• 2 x USB 2.0 headers support additional 4 USB 2.0 ports
• Miscellaneous
• 1 x Addressable Gen 2 header
• 2 x AURA RGB headers
• 1 x Clear CMOS header
• 1 x COM Port header
• 1 x Front Panel Audio header (AAFP)
• 1 x S/PDIF Out header
• 1 x Speaker header
• 1 x SPI TPM header (14-1pin)
• 1 x 10-1 pin System Panel header