LIAN LI Introduces the Platinum Certified SX PSU Series

LIAN LI announces the launch of the SX Series PSU, available in 850W, 1000W, and 1200W with 80 PLUS® Platinum certification for up to 92% efficiency. Built to deliver stable, future-ready power, the SX Series is fully compliant with Intel’s ATX 3.1 specification and features a native PCIe Gen 5.1 12V-2x6 connector capable of supplying up to 600W directly to next-generation GPUs. Cooling is managed by a 120mm FDB fan with a Zero RPM fanless mode that can be toggled on/off via a rear switch, while premium 100% Japanese 105°C capacitors and a high-amperage single +12V rail ensure long-term stability under demanding loads. With a full suite of industrial-grade protections, flexible braided-texture modular cables, and a choice of black or white models with an embossed mesh design, the SX Series is engineered for both performance and clean cable management. Backed by a 10-year warranty, the SX Series PSU offers enthusiasts reliable power with style and peace of mind.

Platinum Efficiency and ATX 3.1 Readiness
The SX Series PSU features 80 PLUS® Platinum certification and full compliance with Intel ATX 3.1, ensuring high efficiency and compatibility with current and future systems. It reaches up to 92% efficiency under typical loads, reducing wasted energy and heat, which helps keep the PC cooler and more reliable. Its native PCIe Gen 5.1 12V-2x6 connector provides up to 600W directly to next-generation graphics cards without the need for adapters, while the included 12V-2x6 to dual 6+2 PCIe cable extends support to multiple devices beyond just GPUs on the 1000W and 1200W models.

Cooling and Build Quality
Engineered for quiet yet effective operation, the SX Series features a 120mm fluid dynamic bearing fan with a Zero RPM fanless mode that can be toggled on or off using the switch on the PSU’s rear panel, allowing for always-on mode or activation only when a specific temperature threshold is reached. The PSU is constructed with 100% Japanese 105°C capacitors for long-term reliability and stable voltage regulation, combined with a high-amperage single +12V rail that provides consistent power to demanding components like GPUs and CPUs.

Design, Protection, and Reliability
The SX Series PSU focuses on both aesthetics and safety, featuring flexible braided-texture modular cables for easy routing and a tidy build, along with an embossed mesh housing designed to enhance airflow and visual appeal. To protect the system, the PSU includes a full set of protections, including OPP, OVP, SCP, OCP, OTP, UVP, SIP, and NLP, ensuring reliability in all operating conditions. The SX Series is offered in 850W, 1000W, and 1200W options and comes with a 10-year warranty.

Availability
The LIAN LI SX Series PSUs are available in black only starting November 13th, 2025.

SX0850P $119.99
SX1000P $149.99
SX1200P $159.99

For more information on the LIAN LI SX Series PSUs, please visit: https://lian-li.com/product/sx-platinum/

The SX Series PSUs are available at Newegg (9:00 AM EST):
850W Black: https://www.newegg.com/p/pl?d=9SIAFSTKKB5227
850W White: https://www.newegg.com/p/pl?d=9SIAFSTKKB5228
1000W Black: https://www.newegg.com/p/pl?d=9SIAFSTKKB5229
1000W White: https://www.newegg.com/p/pl?d=9SIAFSTKKB5230
1200W Black: https://www.newegg.com/p/pl?d=9SIAFSTKKB5231
1200W White: https://www.newegg.com/p/pl?d=9SIAFSTKKB5232

The SX Series PSUs are available at Amazon (9:00 AM EST):
850W Black: https://www.amazon.com/dp/B0FPCGCFLD
850W White: https://www.amazon.com/dp/B0FPCG8CJM
1000W Black: https://www.amazon.com/dp/B0FPCF4H5W
1000W White: https://www.amazon.com/dp/B0FPCDJYBW
1200W Black: https://www.amazon.com/dp/B0FPCFQ8TP
1200W White: https://www.amazon.com/dp/B0FPCH3SY1