ASRock B550M Pro4 Socket AM4 - Motherboard

Everything you need for computing.

Audio Nahimico
Whether you're using headphones, earphones, internal or external speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio gives you the most engaging, vibrant and detail-rich listening experience.

8 power phase design
With robust components and completely smooth power delivery to the CPU. Additionally, it offers unmatched overclocking capabilities and improved performance with the lowest temperature for advanced gamers as well.
Premium 50A Power Choke
Compared to traditional chokes, ASRock's 50A premium power chokes effectively make the saturation current up to three times better, thus providing improved and improved Vcore voltage to the motherboard.
 
2oz copper PCB
2-ounce copper inner layers provide stable signal traces and power shapes! With lower temperature and higher power efficiency for overclocking, it is capable of supporting the latest DDR4 memory modules with the most extreme memory performance.
 
RULE YOUR OWN LIGHTING PATH - RGB POLYCHROME
This motherboard features integrated RGB headers and an addressable RGB header that allows the motherboard to connect to compatible LED devices such as stripes, CPU fans, coolers, chassis, etc. Users can also sync RGB LED fixtures through Polychrome RGB Sync certified accessories to create their own unique lighting effects.
 
A SOLID M.2-SOLUTION PERFORMER
Dual M.2 for SSD, compatible with type 22110 M.2
Ready for higher capacity and even faster Type 22110 M.2 NVMe SSD to meet the need for performance. Hyper M.2 socket that supports PCIe Gen4 x4, while the M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.
M.2 Armor
Good M.2 SSD protection is important for longevity and stability. ASRock provides a complete M.2 armor solution that makes SSDs operate at a certain low temperature.
 
Reinforced steel slot [PCIe 4.0 version]
The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:
- Additional anchor points
- Stronger latch
- Ensure signal stability
- Make sure heavy graphics cards are installed securely.
 
Dual USB 3.2 Gen2 (Type-A + Type-C)
This motherboard has a pair of integrated USB 3.2 Gen2 Type A and Type C ports built into the rear I/O to support next-generation USB 3.2 Gen2 devices and deliver data transfer speeds of up to 10 Gbps.
 
M.2 (KEY E) For WiFi
In addition to the integrated LAN port, users can also choose 802.11ac wireless connections via the M.2 (Key E) slot.
 
Post Status Checker
An easy troubleshooting tool that shows CPU/DRAM/VGA/BOOT operation every time you boot the system. Post Status Checker is a quick and easy way to identify the source of the problem.

Specifications

Processor
- Processor manufacturer: AMD
- Processor socket: AM4 socket
- Compatible processor: AMD Ryzen
- Max. number of SMP processor: 1
Memory
- Supported memory types: DDR4-SDRAM
- Number of memory slots: 4
- Type of memory slots: DIMM
- Memory channels: Dual-channel
- ECC: Yes
- Non-ECC: Yes
- Supported memory clock speeds: 2133, 2400, 2667, 2933, 3200, 3466, 3600, 3733, 3800, 3866, 4000, 4133, 4200, 4266, 4333, 4400, 4466, 4533 MHz
- Maximum internal memory: 128 GB
- Unbuffered memory: Yes
Storage controllers
- Supported storage drive interfaces: M.2, Serial ATA III
Graphics
- Support for parallel processing: Not supported
Internal I/O
- USB 2.0, connectors: 2
- USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
- Number of SATA II connectors: 6
- Front panel connector: Yes
- ATX power connector (24 pins): Yes
- EPS power connector (8-pin): Yes
- Number of COM connectors: 1
- TPM Connector: Yes
- Connector for RGB LED strips: Yes
Rear panel I/O ports (input/output)
- Number of USB 2.0 ports: 2
- Number of Type A USB 3.2 Gen 1 (3.1 Gen 1) ports: 4
- Number of Type A USB 3.2 Gen 2 (3.1 Gen 2) ports: 1
- Number of Type-C USB 3.2 Gen 2 (3.1 Gen 2) ports: 1
- Ethernet LAN (RJ-45) number of ports: 1
- PS/2 mouse port: 1
- Number of VGA ports (D-Sub): 1
- Number of HDMI ports: 1
- Number of DisplayPorts: 1
Connection
- Ethernet: Yes
- Ethernet interface type: Gigabit Ethernet
- LAN Controller: Realtek RTL8111H
- Network connection: Yes
- Wifi: No
Characteristics
- Chipset: AMD B550
- Sound chip: Realtek ALC1200
- Audio output channels: 7.1 channels
- Component for: PC
- Form factor: Micro ATX
- Chipset family: AMD
BIOS
- BIOS types: UEFI AMI
Weight and measurements
- Width: 244 mm
- Depth: 244 mm