Asus Prime B550-Plus
The Asus Prime B550-Plus is a feature-rich ATX motherboard designed for AMD's AM4 platform, offering an ideal balance of performance, connectivity, and value. Whether you're building a gaming rig, a content creation workstation, or a high-performance productivity PC, this board provides the foundation for a powerful and reliable system.
Designed for AMD Ryzen 5000 Series
Built around the AMD B550 chipset, the Prime B550-Plus supports all AMD Ryzen 5000 and 3000 series processors, including the latest Ryzen 5000 G-series APUs. With PCIe 4.0 support for both the primary M.2 slot and the main PCIe x16 slot, you can take full advantage of the fastest NVMe SSDs and the latest graphics cards, ensuring your system is ready for next-generation performance.
Comprehensive Connectivity
This motherboard offers a wide range of connectivity options to meet all your needs:
- Dual M.2 slots: One PCIe 4.0 x4 and one PCIe 3.0 x4, both supporting NVMe SSDs for blazing-fast storage.
- PCIe 4.0 support: For both graphics and storage, doubling the bandwidth compared to PCIe 3.0.
- WiFi 5 (802.11ac): Integrated wireless networking with Bluetooth 5.0 for convenient connectivity.
- 1 Gb Ethernet: Reliable wired networking for lag-free online gaming and high-speed file transfers.
- Rear USB 3.2 Gen 2: Includes both Type-A and Type-C ports for high-speed data transfer up to 10Gbps.
- Front USB 3.2 Gen 1: Type-A and Type-C headers for modern PC cases.
Robust Power Design and Cooling
The Prime B550-Plus features a robust power delivery system with 8+2 power stages, ensuring stable power to the CPU even under heavy loads. Comprehensive cooling options include multiple fan headers, a dedicated M.2 heatsink, and support for liquid cooling, keeping your system cool and quiet during intense sessions.
Easy DIY and Customization
ASUS has included several user-friendly features to simplify building and customization:
- BIOS FlashBack: Update the BIOS without a CPU or RAM installed, making it easy to prepare for newer processors.
- Q-LED indicators: Quickly diagnose boot issues with onboard LEDs.
- Fan Xpert 4: Comprehensive fan control for optimal cooling and acoustics.
- Armoury Crate: Unified software to control RGB lighting and system settings.
Who Is It For?
The Asus Prime B550-Plus is perfect for gamers, PC enthusiasts, and professionals who want a reliable, high-performance motherboard without breaking the bank. It's an excellent choice for building a mid-range to high-end AMD system with support for the latest Ryzen processors and PCIe 4.0 devices.
With its combination of features, performance, and value, the Asus Prime B550-Plus stands out as a top contender in the AM4 motherboard market. Upgrade your build with confidence and experience the power of AMD's B550 platform.
Key Specifications
Detailed Parameters
- Platform:
- AMD
- Socket:
- AM4
- RAM Type:
- DDR4
- Number of RAM Slots:
- 4
- Maximum RAM/slot:
- 32
- Maximum RAM Capacity in GB:
- 128
- PCI Express Version:
- 4
- Form Factor:
- ATX
- Maximum RAM Speed in MHz:
- 4600
- ECC:
- No
- Chipset:
- B550
- SupportedPlatforms:
- AMD Consumer
Pros
- PCIe 4.0 support for both GPU and M.2 SSD
- Dual M.2 slots with one heatsink included
- Integrated WiFi 5 and Bluetooth 5.0
- Robust 8+2 power stage design for stable overclocking
- BIOS FlashBack for easy BIOS updates without CPU
Cons
- Only one M.2 slot supports PCIe 4.0 (second is PCIe 3.0)
- No built-in 2.5Gb Ethernet (only 1Gb)
- Limited RGB headers compared to higher-end boards

