Lian Li Launches RB Series PSUs with Clean Design and Quiet Efficiency

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ATX 3.1 Ready for Next-Gen GPUs

[Press Release] Lian Li has unveiled the RB Series Power Supply Units, available in 550W, 650W, and 750W models with 80 PLUS® Bronze certification for up to 85% efficiency. Built for clean performance and tidy setups, the RB Series features a semi-modular layout and an integrated cable management system with grooves and Velcro straps, helping users maintain neat builds and unobstructed airflow.

Compliant with Intel’s ATX 3.1 standard, the 650W and 750W models include a PCIe Gen 5.1 12V-2×6 connector delivering up to 450W for next-gen GPUs. The 750W unit adds a 12V-2×6 to PCIe 6+2-pin cable, ideal for multi-GPU or AMD setups. With a single +12V rail and DC-to-DC conversion, the PSU ensures stable voltage and efficient power delivery under heavy loads.

A 135mm FDB fan keeps noise levels low, ranging from 33.2 dBA to 40.1 dBA, while maintaining consistent cooling. Each unit is rated for continuous operation up to 40°C and includes full protection features like OPP, OVP, SCP, OCP, UVP, and OTP.

The RB Series launches October 17, 2025, in black, priced at $49.99 (550W), $59.99 (650W), and $69.99 (750W).

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