LIAN LI has introduced its new RB Series power supplies, available in 550W, 650W, and 750W models. The PSU series carries the 80 Plus Bronze certification, offering up to 85% efficiency and stable power output for modern PC systems. Designed for organized builds, the RB Series features an integrated cable management system and a semi-modular layout to help users manage cables easily.
The RB Series includes a built-in cable groove along the PSU housing, paired with Velcro straps to keep cables in place. This approach allows users to secure unused cables neatly, improving airflow and maintaining a tidy interior. The semi-modular design ensures that only the essential cables are connected, with optional SATA and peripheral connectors available when needed.
Meeting Intel’s ATX 3.1 specifications, the RB Series supports current and next-generation hardware. The 650W and 750W models come equipped with a PCIe Gen 5.1 12V-2×6 connector, delivering up to 450W of power for modern graphics cards. The 750W variant also includes a 12V-2×6 to PCIe 6+2-pin cable, offering additional compatibility for high-performance GPUs. Each unit features a single +12V rail and DC-to-DC conversion for stable voltage regulation and consistent power delivery under heavy load.
Cooling is managed by a 135mm fluid dynamic bearing (FDB) fan, designed to maintain low noise levels while ensuring efficient airflow. Depending on the model, the fan operates between 33.2 dBA and 40.1 dBA. The RB Series is rated for continuous full-load operation at ambient temperatures up to 40°C and includes standard protections such as OPP, OVP, SCP, OCP, UVP, and OTP for system safety.
The LIAN LI RB Series PSUs are available in black starting October 17, 2025. Pricing is set at $49.99 for the RB 550W, $59.99 for the RB 650W, and $69.99 for the RB 750W.
