LIAN LI, a company renowned for its computer chassis and accessories, today announced the launch of its new RB Series power supply units. Aimed at providing clean power and simplifying PC builds, the series features an innovative integrated cable management system, 80 PLUS® Bronze efficiency, and modern ATX 3.1 compliance.
The RB Series is available in 550 W, 650 W, and 750 W models, targeting a wide range of system builds. A standout feature is the unique cable management system built directly into the PSU housing. The design incorporates a groove on one side and Velcro straps on three sides, allowing builders to neatly secure and route excess cables directly along the PSU body, which can significantly reduce clutter and improve airflow within the case. This is complemented by a semi-modular design, where only essential motherboard and CPU cables are fixed, while SATA and peripheral cables can be added as needed.
Engineered for modern hardware, the RB Series is fully compliant with the Intel ATX 3.1 standard. The 650 W and 750 W models are equipped with a native PCIe Gen 5.1 12V-2×6 connector, capable of delivering up to 450 W of power to the latest generation of graphics cards. The 750 W model also includes an additional 12V-2×6 to PCIe 6+2-pin cable to support high-end AMD GPUs or other multi-device configurations. Internally, the units feature a high-amperage single +12V rail and a DC-to-DC conversion design to ensure stable voltage regulation and high power quality for demanding components.

Cooling is handled by a quiet 135 mm Fluid Dynamic Bearing (FDB) fan, designed to keep noise levels low while maintaining thermal performance. All models in the series have an 80 PLUS® Bronze certification, guaranteeing up to 85% power efficiency, which helps reduce wasted energy and heat output. The RB Series is built for reliability, supporting continuous full-load operation at ambient temperatures up to 40 °C and includes a full suite of protections (OPP, OVP, SCP, OCP, UVP, and OTP).
Availability and Pricing
The LIAN LI RB Series PSUs are available starting October 17th, 2025.
- RB 550 W: $49.99
- RB 650 W: $59.99
- RB 750 W: $69.99