ASUS Prime series is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity.
Cool to the Core
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
VRM Heatsink and Thermal Pads
Two massive VRM heatsinks with underneath thermal pads improve heat transfer from the MOSFETs and chokes for better cooling performance.
Build on a Solid Foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.
PCIe 4.0 M.2
(up to 64 Gbps)
Achieve Speed With Onboard M.2
PCIe 4.0 M.2 Slot supports up to 22110 and provide NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to 64Gbps PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3rd Generation AMD Ryzen platform.
Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.
Outstanding Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.
| Processor |
|---|
| Supported processor sockets |
Socket AM4 |
| Compatible processor series |
AMD Ryzen 3000 Series |
| Processor socket |
Socket AM4 |
| Processor manufacturer |
AMD |
| Memory |
|---|
| Maximum internal memory |
128 GB |
| Supported memory clock speeds |
2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4600 MHz |
| ECC сompatibility |
ECC & Non-ECC |
| 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 |
| Graphics |
|---|
| On-board graphics card |
No |
| Parallel processing technology support |
2-Way CrossFireX |
| Internal I/O |
|---|
| 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 |
|---|
| DisplayPorts quantity |
1 |
| HDMI ports quantity |
1 |
| Ethernet LAN (RJ-45) ports |
1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity |
2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
4 |
| USB 2.0 ports quantity |
2 |
| Network |
|---|
| Wi-Fi |
No |
| LAN controller |
Realtek RTL8111H |
| Ethernet interface type |
Gigabit Ethernet |
| Ethernet LAN |
Yes |
| Features |
|---|
| Product colour |
Black, Silver |
| Audio output channels |
7.1 channels |
| Motherboard chipset |
AMD B550 |
| Motherboard chipset family |
AMD |
| Motherboard form factor |
ATX |
| Expansion slots |
|---|
| Number of M.2 (M) slots |
2 |
| PCI slots |
2 |
| BIOS |
|---|
| BIOS memory size |
256 Mbit |
| BIOS type |
UEFI AMI |
| Logistics data |
|---|
| Harmonized System (HS) code |
84733020 |
| Weight & dimensions |
|---|
| Height |
67 mm |
| Other features |
|---|
| Weight |
1 kg |
