Lian Li has introduced its new RB Series of power supply units, designed to offer enhanced cable management solutions and support for the latest hardware standards. Available in 550W, 650W, and 750W models, these PSUs boast 80 Plus Bronze certification for up to 85% efficiency and are engineered for cleaner PC builds and reliable power delivery.
Key Takeaways
- Integrated cable management system with grooves and Velcro straps.
- Semi-modular design for flexible connectivity.
- ATX 3.1 compliance for modern system compatibility.
- PCIe Gen 5.1 12V-2×6 connector on higher wattage models.
- Quiet 135mm FDB fan for efficient cooling.
Streamlined Builds With Advanced Cable Management
The RB Series distinguishes itself with an innovative, integrated cable management system built directly into the PSU housing. This feature includes a dedicated groove on one side and Velcro straps on three sides, allowing users to neatly tuck away excess cables. This not only contributes to a tidier internal aesthetic but also improves airflow within the PC case. Complementing this is a semi-modular design, where essential cables are fixed, while SATA and peripheral connectors can be attached only when needed, simplifying the building process and offering greater flexibility for custom configurations.
Next-Generation Power Delivery
Fully compliant with Intel’s ATX 3.1 specifications, the RB Series ensures compatibility with current and future PC components. The 650W and 750W models are equipped with a native PCIe Gen 5.1 12V-2×6 connector, capable of delivering up to 450W of power, making them suitable for high-end graphics cards. The 750W model further enhances compatibility by including an additional 12V-2×6 to PCIe 6+2-pin adapter cable. Internally, a high-amperage single +12V rail and DC-to-DC conversion design ensure stable voltage regulation and consistent power quality, even under demanding loads.
Efficient Cooling and Certified Reliability
To maintain a quiet operating environment, the RB Series utilizes a 135mm fluid dynamic bearing (FDB) fan. This fan operates quietly, with noise levels ranging from 33.2 dBA to 40.1 dBA depending on the model and load. Each PSU is 80 Plus Bronze certified, guaranteeing up to 85% efficiency, which translates to less wasted energy and reduced heat output. The units are designed for continuous full-load operation at ambient temperatures up to 40°C and include comprehensive protection features such as OPP, OVP, SCP, OCP, UVP, and OTP for enhanced system safety and peace of mind.
Availability and Pricing
The Lian Li RB Series PSUs will be available in black starting October 17, 2025. The suggested retail prices are $49.99 for the 550W model, $59.99 for the 650W model, and $69.99 for the 750W model.
Via Lian Li
