Lian Li Released 750W ATX 3.1 Power Supply
The RBO750B power supply prioritizes internal stability and next-gen connectivity with a fixed-cable design.
Updated on Sept. 24, 2026 in Computers
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Lian Li has released the RBO750B, a 750-watt power supply unit featuring the ATX 3.1 standard and native 12V-2x6 high-power cabling. The device is now available at a manufacturer suggested retail price of $69.99.
Why it matters
The RBO750B focuses on internal stability and next-gen component support by utilizing a non-modular design to reduce connection points. This launch addresses the demand for affordable, modern power delivery in consumer PC builds.
The unit provides 750 watts of total output and features a Toshin Kogyo primary capacitor rated at 470uf and 420v. Testing demonstrated stable performance during a 13-hour continuous burn-in session at 17°C ambient temperature.
The players
Lian Li
A manufacturer recognized for its specialized PC chassis, cooling solutions, and power supply hardware components.
The details
Built on a Helly Technology platform with DC-to-DC topology—a method that converts high-voltage DC to lower-voltage DC outputs to improve regulation—the unit integrates 12V-2x6 cabling rated for 450W. Cooling is handled by a 135mm hydraulic bearing fan, while the chassis includes integrated cable-routing loops to manage the non-modular cabling. This hardware configuration emphasizes internal physical connectivity over modular convenience.
Timeline
September 24, 2026: Official publication of the release details.
The Tech Race
The RBO750B marks a shift toward integrating the ATX 3.1 power supply standard within more affordable, mass-market consumer segments. This places the unit in competition with other entry-level power supplies that are increasingly adopting the 12V-2x6 high-power interface.
The RBO750B offers users a native 12V-2x6 connector for high-power GPUs without requiring adapters. Consumers building workstations or gaming rigs can utilize the included cable-routing loops for simplified cable management during installation.
The takeaway
The RBO750B demonstrates a push to standardize high-power 12V-2x6 delivery at a lower price point. Interested builders should watch for independent thermographic analysis of the non-modular cable harness to verify the impact of the chassis-integrated routing loops.
Further reading
For broader trends in hardware, visit the Computers section of our site.
Source note: This article includes information reported by TweakTown.
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