The Lian Li SX1200P Platinum Compact ATX PSU is a premium high-wattage power supply designed for modern gaming PCs, enthusiast builds, and high-performance workstations.

With a powerful 1200W output, the SX1200P provides the capacity required for demanding processors and high-end graphics cards, making it an excellent choice for systems featuring flagship GPUs and multiple performance components.

The PSU follows the latest ATX 3.1 power standard and is PCIe 5.1 compliant, providing improved compatibility with modern hardware and next-generation graphics cards.

It includes a dedicated 12V-2×6 connector, designed to provide reliable high-power delivery to compatible modern GPUs while helping simplify cable management.

The 80 PLUS Platinum efficiency rating helps reduce wasted power and heat compared with lower-efficiency power supplies. Internally, the SX1200P uses Japanese 105°C-rated capacitors for dependable operation under demanding workloads.

A 120mm Fluid Dynamic Bearing (FDB) fan provides active cooling while helping maintain quiet operation. The compact SXP Compact ATX form factor offers a smaller footprint than many conventional high-wattage ATX PSUs, making it particularly useful for space-conscious high-performance builds.

Finished in white, the Lian Li SX1200P is an excellent match for premium white gaming PCs and showcase builds.

Key Features

• 1200W Maximum Power Output
• 80 PLUS Platinum Efficiency
• Compact ATX / SXP Form Factor
• ATX 3.1 Compliant
• PCIe 5.1 Compliant
• 12V-2×6 GPU Power Connector
• Designed for Modern High-End GPUs
• Japanese 105°C-Rated Capacitors
• 120mm Fluid Dynamic Bearing Fan
• Efficient & Reliable Power Delivery
• Compact High-Wattage Design
• Suitable for Gaming PCs
• Ideal for High-End Workstations
• Premium White Finish
• Designed for Enthusiast Builds

Specifications