MotherboardsASRock
ASRock B550 Pro4 AMD B550 DDR4 ATX Motherboard
MPN: 90-MXBCZ0-A0UAYZ
Key specifications
SocketAM4
Form factorATX
ChipsetAMD B550
Memory typeDDR4
M.2 slots4
Max Memory128 GB
Full Specifications31 fields
Additional Information
Model Number
90-MXBCZ0-A0UAYZ
Gtin
4710483931482
Additional Specifications
Water Cooled
No
Cooling
Passive Heatsinks
Qpi Speed
N/A
Dimensions
305 x 244 mm
Note
-
Core Specifications
Edition
B500 Pro4
Form Factor
ATX
Socket
AM4
Chipset
AMD B550
External Connectivity
Network Interface Type
Wired Gigabit LAN (10/100/1000)
Network Chip Modules
1 x Realtek RTL8111H (Gigabit LAN)
Rear I O Connectors
2 x Antenna Ports
1 x D-Sub (VGA)
1 x Front Speaker Out
1 x HDMI
1 x Line In
1 x Mic-In
1 x PS/2 Keyboard/Mouse Combo
1 x RJ-45 with LED
4 x USB 3.2 Gen1 Type-A
1 x USB 3.2 Gen2 Type-A
1 x USB 3.2 Gen2 Type-C
Graphics Support
Primary Gpu Interface
PCIe 4.0 (x16)
Nvidia Sli Support
Not Supported
Amd Crossfire Support
2-Way CrossFire
Integrated Graphics
Requires Processor Graphics or Discrete GPU
On Board Graphics Connectors
D-Sub (VGA)
HDMI 2.1
Internal Connectivity
Expansion Slots
2 x M.2 Key E (Supports Wi-Fi modules)
1 x M.2, 22-42/60/80, PCIe Gen3/SATA3
1 x M.2, 22-60/80/
110 PCIe Gen 4x4
1 x M.2, 22-60/80/110, PCIe/SATA
2 x PCIe 3.0 x1
2 x PCIe 4.0 x16
Sata Support
SATA3
Raid Support Via
-
Storage Mode Support
RAID 0
RAID 1
RAID 10
Internal I O
1 x 24-pin (Power)
1 x 4-pin (Power)
4 x 4-pin CHA_FAN connector
1 x 4-pin CPU Fan Connector
1 x 4-pin CPU OPT Fan Connector
1 x 8-pin (Power)
2 x Addressable Digital RGB Header
1 x Front Panel Audio Header
2 x RGB Header
6 x SATA III - 6Gb/s
1 x Serial (COM) Header
1 x TPM (SPI_TPM) header
2 x USB 2.0 Header
1 x USB 3.2 Gen1 Header
RAM Memory Support
Memory Type
DDR4
Memory Channel
Dual (2)
Memory Type Ecc
ECC/Non-ECC
Memory Type R U
UDIMM (Unbuffered)
Memory Speed Mhz
DDR4 - 2133
DDR4 - 2400
DDR4 - 2667
DDR4 - 2933
DDR4 - 3200
DDR4 - 3466(OC)
DDR4 - 3600(OC)
DDR4 - 3733(OC)
DDR4 - 3800(OC)
DDR4 - 3866(OC)
DDR4 - 4000(OC)
DDR4 - 4133(OC)
DDR4 - 4200(OC)
DDR4 - 4266(OC)
DDR4 - 4333(OC)
DDR4 - 4400(OC)
DDR4 - 4466(OC)
DDR4 - 4533(OC)
DDR4 - 4533+(OC)
DDR4 - 4600(OC)
DDR4 - 4666(OC)
DDR4 - 4733+(OC)
Max Memory Capacity
128GB
General
Audio
Realtek ALC1200 7.1 HD Audio
Best indexed price
£94.98GBP
Indexed 16 Mar 2026 — verify at retailer
