Lian Li SX Series 1000W 80 PLUS Platinum PSU, fully modular, PCIe 5.1, ATX 3.1, white
- Wattage: 1000 W
- Efficiency Rating: 80 PLUS Platinum
- Form: ATX
Powerful 1,000-watt power supply, with 80 PLUS Platinum efficiency, ATX 3.1 & PCIe 5.1 support, zero-RPM fan mode, modular

The Lian Li SX Series 1,000 W power supply is perfect for anyone looking to build a powerful gaming PC or workstation. With up to 1,000 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 light load. The fully modular design also ensures a tidy interior – you only connect the cables you actually need.
- 1,000 watts power: Ideal for high-end PCs with powerful hardware
- 80 PLUS Platinum efficiency: Up to 92% efficiency at half load
- Fully modular design: Including 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
The Lian Li SX Series 1,000 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 additionally offers a native 12V 2x6 connector for modern GPUs – completely adapter-free.
High efficiency & quiet operation
Inside, high-quality Japanese capacitors ensure stable power delivery and long service life. 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, ensuring cool temperatures. At low load, it automatically switches to Zero-RPM mode – for absolutely silent operation.
Clean cable management thanks to modular design
The Lian Li SX Series offers fully modular connectors. You only connect the cables you really need – keeping your system tidy and airflow unobstructed.
The included braided cables are flexible and easy to route. The 12V 2x6 connector features a two-tone marking that shows when the connection is securely locked in place. You can be sure the plug is correctly seated.
Safe & durable
For maximum safety, the power supply protects your system with multiple protection functions such as overvoltage, overload, short circuit, and no-load protection. This ensures your hardware remains protected in the long term.