This Asrock B550 Pro4 Motherboard is powered by AMD B550 and AM4 and offers ATX form factor. With 4 DDR4, VGA, HDMI, XFire, and PCIe4.0, it provides extended performance. RGB Lighting and M.2 support provide gamers with greater customisation and experience.

• Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors
• 8 Power Phase Design, Digi Power
• Supports DDR4 4733+ (OC)
• 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi
• Graphics Output Options: HDMI, D-Sub
• AMD CrossFireX™
• 7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio
• 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
• 2 USB 3.2 Gen2 (Rear Type A+C), 6 USB 3.2 Gen1 (2 Front, 4 Rear)
• Gigabit LAN

Specifications

Motherboard Type: Desktop

Form Factor: ATX

Socket: AMD AM4

Chipset: AMD B550

RAM Technology: DDR4 (Dual Channel)

RAM Slots: 4 x DIMM

RAM Speeds: 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 MHz

Maximum Memory: 128GB

Graphics
Integrated Graphics Processor*
Graphics specifications may vary between CPU types

Graphics Ports: 1 x VGA, 1 x HDMI

Multi-GPU Support: Supports AMD Quad CrossFireX and CrossFireX

PCI/PCI Express
2 x PCIe 4.0 x16
2 x PCIe 3.0 x1

Storage
6 x SATA III
1 x M.2 (2260/2280/22110) - PCIe
1 x M.2 (2242/2260/2280) - SATA & PCIe

RAID: RAID 0, 1, 10

Wireless: No

LAN: GB LAN

Audio: 7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec)

USB Ports Supported
2 x USB 3.2 Gen2 (1 Type-A & 1 Type-C 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
Antenna Bracket
1 x PS/2 Mouse/Keyboard
1 x D-Sub
1 x HDMI
1 x USB 3.2 Gen2 Type-A
1 x USB 3.2 Gen2 Type-C
4 x USB 3.2 Gen1
1 x RJ-45 LAN
HD Audio Jacks

Internal I/O Connectors
1 x COM Port
1 x SPI TPM
1 x Power LED and Speaker
2 x RGB LED
2 x Addressable LED
1 x CPU Fan
1 x CPU/Water Pump Fan
4 x Chassis/Water Pump Fan
1 x 24 pin ATX
1 x 8 pin 12V
1 x 4 pin 12V
1 x Front Audio 2 x USB 2.0
1 x USB 3.2 Gen1

Accessories
2 x SATA Data Cables
3 x Screws for M.2 Sockets
1 x Standoff for M.2 Socket