Lian Li SX Series 80 PLUS Platinum Power Supply, fully modular, PCIe 5.1, ATX 3.1 - 1,200 Watts, black
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.
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Colour
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Primary Colour
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Black
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Dimensions
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Length / Depth
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140 mm
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Width
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86 mm
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Height
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150 mm
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Fan Specifications
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Fan Size
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120 mm
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Power Supply
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PSU Format
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ATX
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ATX Standard
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ATX 3.1
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12V Distribution
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single rail
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Modular Power Supply
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Yes
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Modular Type
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fully modular
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Protection Circuits
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OCP (Overcurrent Protection), OPP (Overload Protection), OTP (Overtemperature Protection), OVP (Overvoltage and Undervoltage Protection), SCP (Short-Circuit Protection), UVP (Undervoltage Protection)
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Power Specifications
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Total Power Output
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1200 W
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Power Output +3.3V & +5V (combined)
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100 W
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Power Output +12V rails
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1200 W
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Cable Specifications
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Max. CPU Power Cable Length
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700 mm
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Max. 24-Pin Motherboard Power Cable Length
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600 mm
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Max. 12V-2x6 Cable Length
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600 mm
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Max. PCIe Power Cable Length
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550 mm
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Max. SATA Power Cable Length
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850 mm
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Cooling
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Semi Passive Power Supply
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Yes
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Internal Ports
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CPU Power Connectors 12V ATX/EPS
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2
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CPU Power Supply
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2x 4+4-Pin
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12V-2x6 Power Connectors
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1
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6+2 Pin PCIe Power Connectors
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5
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SATA Power Connectors
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8
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Efficiency Class
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80PLUS Efficiency
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80 PLUS Platinum
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Lighting
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Lighting / RGB
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No
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Product reviews displayed are aggregated from all Pro Gamers Group websites.
| Compliance Documents | |
| Manufacturer Information | Caseking GmbH Gaußstraße 1, 10589 Berlin, Germany [email protected] |
| Responsible Person | Caseking GmbH Gaußstraße 1, 10589 Berlin, Germany [email protected] |