Lian Li SX Series 80 PLUS Platinum power supply, fully modular, PCIe 5.1, ATX 3.1 - 1,200 watts, white

The Lian Li SX Series 1,200W power supply is perfect for anyone building a high-performance gaming PC or workstation. With up to 1,200 watts, it delivers enough power for high-end processors, modern graphics cards, and extensive cooling systems.

Thanks to the 120 mm fan with Zero-RPM mode, the power supply remains quiet when your system is under low load. The fully modular design also ensures a tidy interior – you only connect the cables you really need.

Features:

–  1,200 watts power: Ideal for high-end PCs with powerful hardware
– 80 PLUS Platinum efficiency: Up to 92% efficiency at half load
– Fully modular design: Includes flexible, sleeved cables
– ATX 3.1 & PCIe 5.1 standard: Future-proof and GPU compatible
– Quiet operation: 120 mm fan with Zero RPM mode
– Lian Li SX Platinum: Maximum performance for modern hardware

Lian Li SX Series 1,200W power supply
The Lian Li SX Series 1,200 W reliably powers even high-end components. It supports current AMD and Intel processors as well as large graphics cards such as the RTX 5000 series.

Thanks to ATX 3.1 and PCIe 5.1 compatibility, it is also well prepared for upcoming hardware generations. The power supply also offers a native 12V 2×6 connector for modern GPUs – without any adapters.

High efficiency & quiet operation
Power supply with fan
Inside, high-quality Japanese capacitors ensure stability in power delivery and a long lifespan. With an efficiency of up to 92%, the power supply operates particularly energy-efficiently.

The 120 mm FDB fan runs up to 2,000 rpm under heavy load, keeping temperatures cool. At low load, it automatically switches to Zero-RPM mode – for completely silent operation.

Clean cable management thanks to modular design
Fully modular power supply
The Lian Li SX Series offers fully modular connections. You connect only the cables you really need – keeping your system tidy and airflow unobstructed.

The included braided cables are flexible and easy to route. The 12V 2×6 connector features a two-color marking that shows when the connection is securely locked in place. So you can be confident the plug is properly seated.

Safe & durable
For maximum safety, the power supply protects your system with multiple protection features such as overvoltage, overload, short circuit, and no-load protection. This keeps your hardware protected in the long term.