The ASRock B550 Pro4 is a solid ATX motherboard built around the AMD B550 chipset, designed for users looking to build a capable and future-ready AMD-based system. It supports AMD Ryzen 3000, 4000, and 5000 Series processors, making it a versatile choice for a wide range of builds. With its ATX form factor measuring 305 x 244 mm, it fits comfortably in most standard mid-tower cases. The board comes with UEFI AMI BIOS and supports ACPI version 5.1, ensuring smooth system management and compatibility.
Memory and Storage Capabilities
The ASRock B550 Pro4 offers four DIMM slots supporting DDR4 memory in dual-channel configuration, with speeds up to 3200 MHz and a maximum capacity of 128 GB. Both ECC and non-ECC unbuffered memory are supported. For storage, the board features six SATA III connectors and three M.2 slots, providing ample options for fast NVMe drives and traditional storage devices. Two PCI Express Gen 4 x16 slots and two PCI Express 3.0 x1 slots round out the expansion options.
Connectivity and Audio
On the connectivity front, the board includes a Realtek RTL8111H Gigabit LAN controller with Wake-on-LAN support, one USB 3.2 Gen 2 Type-A port, one USB 3.2 Gen 2 Type-C port, HDMI and VGA display outputs with HDCP support, and a PS/2 port. Audio is handled by the Realtek ALC1200 chip, delivering clear sound output. A front panel audio connector and four chassis fan connectors add further flexibility for system builders.
Product number manufacturer:
90-MXBCZ0-A0UAYZ
Audio
BIOS
Connectivity
USB 3.2 (Gen 1) type C ports:
0
USB 3.2 (Gen 2) type A ports:
1
USB 3.2 (Gen 2) type C ports:
1
Expansion slots
PCI Express 3.0 x1 slots:
2
PCI Express 3.0 x16 slots:
1
Internal I/O
ATX Power connector (24-pin):
Chassis fan connector(s):
4
EPS power connector (8-pin):
Front panel audio connector:
USB 3.1 (3.1 Gen 2) connectors:
0
USB 3.1 (Gen 1) header(s):
1
Memory
Supported memory clock speeds:
3200 MHz
Networking
Network technology (wired):
Packaging content
Physical characteristics
Processor
Compatible processor series:
AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Maximum number of SMP processors:
1
Technical details
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