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  1. Home
  2. Motherboards
  3. AMD - AM4
SKU: 800-26549A
  • Max 128GB / 4x DDR4 DIMM / Up to 4733+(O.C.)
  • 6x SATA 6GB/s, 2x M.2 / RAID 0, 1, 10
  • Up to 2x USB 3.2 G2 (1x USB-C), 5x USB 3.2 G1 (1x USB-C), 8x USB 2.0
  • 2x PCIe x16, 2x PCIe x1
Our Price: Login to see price
Discontinued - Not orderable
 

Specifications

CPU Support
  • AMD AM4 3rd Gen Ryzen processor
  • Not Compatible with AMD Ryzen 5 3400 G and Ryzen 3200 G
Number of Processor (s)
Single (Not Included)
Chipset
AMD B550
System Bios
AMI UEFI BIOS
Video card slot
PCIe 4.0/3.0 x16
Number of Memory Slots
4
Type of Memory Supported
DDR4 4733+(O.C.) / 4666(O.C.) / 4600(O.C.) / 4533(O.C.) / 4400(O.C) / 4266(O.C.) / 4133(O.C.) / 4000(O.C.) / 3866(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C.) / 3333(O.C.) / 3200 / 3000/ 2800 / 2666 / 2400 / 2133 MHz ECC and non-ECC, Un-buffered Memory
Maximum RAM
128GB
Back Panel I/O
  • 1 x PS/2 Mouse/Keyboard
  • 1 x USB 3.2 Gen2 Type-A port
  • 1 x USB 3.2 Gen2 Type-C port
  • 2 x USB 3.2 Gen1 ports
  • 4 x USB 2.0 ports
  • 1 x HDMI
  • 1 x RJ-45 LAN
  • 1 x Audio I/O
  • 2 x Antenna Mounting Points
Number of PCI/PCI-Express Slots
  • 1 x PCIe 4.0 x16
  • 1 x PCIe 3.0 x16 (Max x4)
  • 2 x PCIe 3.0 x1
Integrated SATA/SAS
6 x SATA 6Gb/s
# of M.2 Ports
  • 1 x M.2 socket 3, with M key, type 2230/2242/2260/2280 storage devices support PCIe 4.0 x4 mode
  • 1 x M.2 socket 3, with M key, type 2230/2242/2260/2280/22110 storage devices support SATA & PCIe 3.0 x2 mode
Integrated SATA/SAS RAID
RAID 0, 1, 10
Integrated Audio
Realtek ALC1220 7.1 CH HD Audio Codec
Integrated Video
Integrated Graphics from processor (Actual support may vary by CPU)
Integrated LAN
Dragon RTL8125BG 2.5 Gigabit LAN
USB
  • 1 x USB 3.2 Gen2 Type-A port on Back Panel I/O
  • 1 x USB 3.2 Gen2 Type-C port on Back Panel I/O
  • 2 x USB 3.2 Gen1 ports on Back Panel I/O
  • 1 x USB 3.2 Gen1 Type-C port via header
  • 2 x USB 3.2 Gen1 ports via header
  • 4 x USB 2.0 ports on Back Panel I/O
  • 4 x USB 2.0 ports via headers
PS/2 Ports
1 x PS/2 Mouse/Keyboard
Form Factor
ATX
Dimensions
12" x 9.6"

The above specifications are For reference only. Please contact the original manufacturer For the most updated specifications.

Warranty and Service

  • Warranty Length: 1 year
  • Warranty Provider: Asrock
  • Service Contact:
    1. First 30-day from invoice date: Allstarshop On-line RMA Request
    2. After 30-day from invoice date: Contact Asrock at (909) 590-8308
  • Technical Support: Asrock (909) 590-8308

Package Contents

  • ASRock B550 Extreme4 motherboard
  • Quick Installation Guide
  • Support CD
  • 4 x SATA Data Cables
  • 3 x Screws for M.2 Sockets
  • 2 x Standoffs for M.2 Sockets

Compatible Accessories

Hard Drives

WD Blue 1TB 7200RPM 64MB Buffer SATA 6Gb/s 3.5" HDD (Drive Only)
  • 2-year Warranty
Manufacturer: Western Digital
Mfg P/N: WD10EZEX
Availability: Usually ships same day