Reliable, Quiet and Efficient Power for Your PC.

The Seasonic S12III Series is a dependable 80 PLUS Bronze-certified ATX power supply designed for home, office and mainstream gaming PCs. With up to 85% efficiency, Active PFC, LLC resonant design and Smart & Silent Fan Control (S2FC), it delivers stable power, efficient operation and quiet performance.

Why Choose the Seasonic S12III?

A reliable power supply is essential for stable PC performance. The Seasonic S12III Series combines trusted Seasonic engineering with 80 PLUS Bronze efficiency, intelligent cooling and stable power delivery.

It is an excellent choice for users looking for a dependable and efficient PSU for everyday computing and mainstream PC builds.