Asrock B550 Pro4 ATX AMD Motherboard | AM4 Socket - 4 x DDR4 Memory Slots
KEY FEATURES
- Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors
- 8 Power Phase Design, Digi Power
- Supports DDR4 4733+ (OC)
- 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 2 PCIe 3.0 x1, 1 M.2 Key E for WiFi
- Graphics Output Options: HDMI, D-Sub
- AMD CrossFireX™
- 7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio
- 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
- 2 USB 3.2 Gen2 (Rear Type A+C), 6 USB 3.2 Gen1 (2 Front, 4 Rear)
- Gigabit LAN
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Frequently Asked Questions
What processors are compatible with the Asrock B550 Pro4?
How many memory slots does the B550 Pro4 have?
Does the motherboard support RGB lighting?

Asrock B550 Pro4 ATX AMD Motherboard | AM4 Socket - 4 x DDR4 Memory Slots
Description
The Asrock B550 Pro4 motherboard is designed for gamers and PC enthusiasts who demand high performance and reliability. With its advanced features and robust design, this motherboard is the perfect foundation for your next build. Whether you are an avid gamer or a content creator, the B550 Pro4 ensures that you have everything you need for a seamless computing experience.
Key Benefits
- Nahimic Audio Technology: Experience immersive sound with Nahimic Audio, which enhances your audio experience whether you are using headphones or speakers. The Sound Tracker feature provides a visual representation of sound direction, making it ideal for gaming.
- 8 Power Phase Design: This motherboard features an 8 power phase design that ensures smooth power delivery to the CPU, allowing for exceptional overclocking capabilities and lower temperatures during intense gaming sessions.
- Premium 50A Power Choke: With ASRock's premium 50A power chokes, you can expect improved Vcore voltage and enhanced performance, making it a reliable choice for high-demand applications.
- Polychrome RGB Lighting: Customise your setup with stunning RGB lighting. The B550 Pro4 allows you to control built-in RGB LEDs and synchronise with other RGB devices for a cohesive look.
- Dual M.2 Slots: Equipped with dual M.2 slots, this motherboard supports high-capacity NVMe SSDs, ensuring that you can take advantage of faster data transfer speeds and improved system responsiveness.
- Full Spike Protection: Protect your components from unexpected voltage spikes with ASRock's Full Spike Protection technology, ensuring longevity and stability for your system.
Addtional Features
The Asrock B550 Pro4 is packed with features that enhance both performance and usability. It supports the latest DDR4 memory modules, with a maximum internal memory capacity of 128 GB across four DIMM slots. The motherboard is compatible with a range of AMD Ryzen processors, making it versatile for various builds.
Additionally, the B550 Pro4 includes reinforced steel slots for PCIe 4.0, ensuring that heavy graphics cards are securely installed and that signal stability is maintained. The dual USB 3.2 Gen2 ports (Type-A and Type-C) offer rapid data transfer rates of up to 10 Gbps, making it easy to connect the latest peripherals.
For those looking to connect wirelessly, the M.2 (Key E) slot allows for 802.11ac WiFi connections, providing flexibility in how you set up your network. The Post Status Checker is a handy feature that simplifies troubleshooting by indicating the operational status of key components during system startup.
Why Buy
The Asrock B550 Pro4 AMD B550 Socket AM4 ATX motherboard is a powerful and reliable choice for anyone looking to build a high-performance PC. With its advanced features, robust design, and exceptional audio capabilities, it stands out as a top choice for gamers and professionals alike. Invest in the B550 Pro4 for a motherboard that not only meets your needs but exceeds your expectations.
Feature
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Eligible for Next day Delivery
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Shipping Information
- Next Business Day: £6.99
- 2 days Delivery: £4.99
- 3- 5 Days Shipping: £3.99
- Orders Over £99.00: Free Standard Delivery
Processor | |
---|---|
Supported processor sockets | Socket AM4 |
Maximum number of SMP processors | 1 |
Compatible processor series | AMD Ryzen 3000 Series |
Processor socket | Socket AM4 |
Processor manufacturer | AMD |
Memory | |
---|---|
Unbuffered memory | Yes |
Maximum internal memory | 128 GB |
Supported memory module capacities | 4GB, 8GB, 16GB, 32GB |
Supported memory clock speed (max) | 4533 MHz |
Supported memory clock speeds | 2133,2400,2667,2933,3200,3466,3600,3733,3800,3866,4000,4133,4200,4266,4333,4400,4466,4533 MHz |
ECC сompatibility | ECC & Non-ECC |
Memory channels | Dual-channel |
Memory slots type | DIMM |
Number of memory slots | 4 |
Supported memory types | DDR4-SDRAM |
Storage controllers | |
---|---|
RAID levels | 0, 1, 10 |
RAID support | Yes |
Supported storage drive interfaces | M.2, SATA III |
Supported storage drive types | HDD & SSD |
Graphics | |
---|---|
DirectX version | 12.0 |
HDCP | Yes |
Parallel processing technology support | CrossFireX, Quad-GPU CrossFireX |
Internal I/O | |
---|---|
RGB LED pin header | Yes |
TPM connector | Yes |
12V power connector | Yes |
Number of COM connectors | 1 |
EPS power connector (8-pin) | Yes |
Peripheral (Molex) power connectors (4-pin) | 1 |
Number of chassis fan connectors | 4 |
CPU fan connector | Yes |
ATX Power connector (24-pin) | Yes |
Front panel connector | Yes |
Front panel audio connector | Yes |
Number of SATA III connectors | 6 |
USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
USB 2.0 connectors | 2 |
Rear panel I/O ports | |
---|---|
Microphone in | Yes |
HDMI ports quantity | 1 |
VGA (D-Sub) ports quantity | 1 |
PS/2 ports quantity | 1 |
Ethernet LAN (RJ-45) ports | 1 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
Network | |
---|---|
Wi-Fi | No |
Wake-on-LAN ready | Yes |
LAN controller | Realtek RTL8111H |
Ethernet interface type | Gigabit Ethernet |
Ethernet LAN | Yes |
Features | |
---|---|
Harmonized System (HS) code | 84733020 |
PC health monitoring | CPU, Fan, Temperature, Voltage, Water cooling |
Audio output channels | 7.1 channels |
Audio chip | Realtek ALC1200 |
Motherboard chipset | AMD B550 |
Motherboard chipset family | AMD |
Motherboard form factor | ATX |
Component for | PC |
Expansion slots | |
---|---|
Number of M.2 (M) slots | 2 |
PCI Express x16 (Gen 4.x) slots | 1 |
PCI Express x16 (Gen 3.x) slots | 1 |
PCI Express x1 (Gen 3.x) slots | 2 |
BIOS | |
---|---|
System Management BIOS (SMBIOS) version | 2.3 |
ACPI version | 5.1 |
BIOS memory size | 256 Mbit |
BIOS type | UEFI AMI |
Weight & dimensions | |
---|---|
Height | 87 mm |
Depth | 244 mm |
Width | 305 mm |
Packaging content | |
---|---|
Drivers included | Yes |
Cables included | SATA |
Other features | |
---|---|
Weight | 465 g |
Frequently Asked Questions
What processors are compatible with the Asrock B550 Pro4?
How many memory slots does the B550 Pro4 have?
Does the motherboard support RGB lighting?
What is the warranty period for the Asrock B550 Pro4?
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