LIAN LI Introduces RB Series Power Supplies with Integrated Routing Straps and ATX 3.1 Support

LIAN LI has announced the launch of its new RB Series power supplies, available in 550 W, 650 W, and 750 W variants. The lineup carries 80 PLUS Bronze certification, offering up to 85% efficiency, and introduces a focus on practical cable management and modern platform compatibility.

The RB Series is designed for builders who want clean, reliable, and flexible system layouts, with semi-modular connectivity and next-generation PCIe support.

Advanced Cable Management and Semi-Modular Flexibility

The RB Series differentiates itself from typical Bronze-tier PSUs by integrating a built-in cable management system directly into the housing. A dedicated groove along the side of the unit allows users to tuck in and secure excess cables neatly, aided by Velcro straps positioned on three sides of the chassis.

This feature helps minimize cable clutter and improves airflow inside the case, while the semi-modular layout allows users to connect SATA and peripheral cables only when required. The result is a streamlined installation process that prioritizes both aesthetics and practicality.

Modern Power Delivery for Current and Future Hardware

Compliant with Intel’s ATX 3.1 specification, the RB Series ensures support for current and upcoming desktop platforms. Both the 650 W and 750 W models include a native PCIe Gen 5.1 12V-2×6 (12+4-pin) connector, delivering up to 450 W for next-generation GPUs.

The 750 W model also includes an extra 12V-2×6 to PCIe 6+2-pin cable, allowing compatibility with high-end AMD graphics cards or multi-GPU configurations.

Internally, the RB Series utilizes a single high-amperage +12 V rail to deliver consistent power across components. The DC-to-DC conversion design improves voltage stability and efficiency, ensuring clean and reliable power delivery across varying load conditions.

Quiet Cooling and Reliable Operation

Cooling is handled by a 135 mm fluid dynamic bearing (FDB) fan, engineered to balance airflow and low noise operation. Depending on the model, noise levels range from 33.2 dBA to 40.1 dBA under full load.

Each unit in the RB Series is rated for continuous full-load operation at up to 40°C ambient temperature and includes multiple protection features such as Over Power (OPP), Over Voltage (OVP), Short Circuit (SCP), Over Current (OCP), Under Voltage (UVP), and Over Temperature (OTP).

Pricing and Availability

The LIAN LI RB Series power supplies will be available in black only starting October 17, 2025.

The LIAN LI RB Series delivers a balanced combination of modern power delivery, semi-modular design, and integrated cable management—a unique feature at the Bronze-tier level. With ATX 3.1 compliance and Gen 5.1 support, it positions itself as an accessible yet forward-compatible option for system builders and mainstream gamers.