Powerful 1,200-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 1,200 W power supply is perfect for anyone looking to build a powerful gaming PC or workstation. Delivering up to 1,200 watts, it provides 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. 1,200 watts output: 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 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 like 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 2x6 connector for modern GPUs – without the need for adapters. High efficiency & quiet operation Inside, high-quality Japanese capacitors ensure stable power delivery and a long service life. With an efficiency of up to 92%, the power supply operates very energy efficiently. The 120 mm FDB fan runs at up to 2,000 RPM under heavy load to maintain cool temperatures. At low load, it automatically switches to Zero RPM mode for completely 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-colour marking that indicates when the connection is securely locked. This gives you the assurance that the plug is correctly 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 safe in the long term.
