Power Supply LIAN-LI SX white SX1200P-W 80 Plus Platinum 1200W

Lian-Li SX 1200W Platinum White Power Supply

The white 1200W version of the SX Platinum series offers the same high level of performance in a bright, clean shell that blends nicely into white-themed builds. It is a high-wattage supply with Platinum certification, built to deliver steady power to top-tier gaming and workstation systems.

Power & efficiency

With 1200 watts on tap and two efficiency certifications, 80 PLUS Platinum and PPLP Platinum, the supply converts power at a high efficiency and cuts down on wasted energy and heat. It maintains a stable +12V output and can absorb peak loads of up to 200% of the rated value, ensuring smooth running even when the graphics card and processor are at full load.

Cables & connectors

The supply is fully modular, so only the cables your system actually needs get connected, leaving the case interior clean and well ventilated. It complies with the ATX 3.1 and PCIe 5.1 standards and suits the new generation of graphics cards and processors, keeping the build relevant for upcoming upgrades too.

Reliability & cooling

At loads of up to 40% the Smart Stop/Start function halts the fan entirely for completely silent operation, and a dedicated switch on the rear of the unit lets you enable or disable this behaviour as needed. At the heart of the unit are quality Japanese capacitors for lasting durability, and a broad protection set including OCP, OVP, OTP, OPP, SCP, UVP, NLP and SIP keeps the system safe from electrical faults.

• Output: 1200W
• Efficiency: 80 PLUS Platinum · PPLP Platinum
• Standard: ATX 3.1 · PCIe 5.1 · peak loads up to 200%
• Modularity: fully modular
• Cooling: Smart Stop/Start · fanless up to 40% load
• Capacitors: quality Japanese
• Protections: OCP · OVP · OTP · OPP · SCP · UVP · NLP · SIP