ASROCK B550 Pro4

ASROCK B550 Pro4
The ASROCK B550 Pro4 is an ATX motherboard designed for AMD Ryzen 3000, 4000, and 5000 series processors on the AM4 socket. It provides stable power delivery thanks to its eight-phase design and digital control, supports high-frequency DDR4 memory and lets you take advantage of the PCI Express 4.0 standard for both graphics cards and storage. With its combination of modern ports, high-quality audio, and customisable lighting, it's perfect for versatile gaming and work builds.
Key features of the ASROCK B550 Pro4 motherboard
- Support for AMD Ryzen 3000, 4000 and 5000 series processors on the AM4 socket
- 8-phase power design with digital control for stable performance
- Two M.2 slots, including PCIe Gen4 x4 support and SSD cooling
- High-quality 7.1-channel audio with Realtek codec and Nahimic Audio technology
- Reinforced steel PCIe 4.0 slot for secure installation of graphics cards
- Wide range of connectivity, including USB 3.2 Gen2 Type-A and Type-C
- Customisable and synchronised RGB lighting
Stable performance and reliability
The motherboard uses an eight-phase power design and premium 50A power chokes to ensure a stable power supply to the processor and better overclocking conditions. Two-ounce copper layers inside the PCB contribute to lower temperatures, higher energy efficiency, and signal stability. The reinforced steel PCIe 4.0 slot ensures the secure installation of even heavier graphics cards.
Modern features and technology
For data storage, there are two M.2 slots – one supporting PCIe Gen4 x4, the other with PCIe Gen3 x2 and SATA3, complete with a heatsink for lower SSD temperatures. There are six SATA III connectors and RAID support. Audio is handled by a 7.1-channel card with a Realtek codec and Nahimic Audio technology for faithful surround sound and a Sound Tracker feature. The connectivity options include USB 3.2 Gen2 (Type-A and Type-C), USB 3.2 Gen1, HDMI, D-Sub, and a gigabit network card. You can customise the lighting with Polychrome RGB and synchronise it with other compatible components.
Port connectivity
Storage
- Number of SATA III: 6
- Number of M.2: 2
- M.2 Slot 1 - M.2 PCIe Gen4 x4
- M.2 Slot 2 - M.2 PCIe Gen3 x2 & SATA3
- Features: RAID 0, RAID 1, RAID 10, RAID 5
USB ports
- Internal USB 2.0: 1
- Internal USB 3.2 Gen 1: 1
- Rear USB 3.2 Gen 1: 4
- Rear USB 3.2 Gen 2: 2
- Rear USB-C 3.2 Gen 2: 1
Graphics
- HDMI
- VGA (D-Sub)
Audio
- Number of channels: 7.1
- Rear connectors: 1× 3.5mm
- Internal connectors: S/PDIF
Other
- Rear: PS/2, RJ-45 (LAN 1Gbps)
- Power: 24-pin
- Internal: ARGB LED Header, RGB LED Header, TPM header
Specifications
Socket and chipset
Format & functions
Memory
Advanced parameters
Connectors
Series
Compatibility
Colour
| Code: | AS258g22 |
| Warranty: | 24 months |
| Links: | Producer's Website: |