Corsair HX850i

High performance and incredible efficiency characterize the quietest Corsair power supplies yet.

The HXi power supply series features extremely precise voltage regulation, practically noiseless operation, and a fully modular cable set. With 100% Japanese 105-degree capacitors, they are ideal for high-performance PCs where reliability is essential. The efficiency of 80 PLUS Platinum reduces operating costs and excess heat, and together with Zero RPM fan mode technology, virtually noiseless operation is achieved.

Corsair Link Digital support allows you to monitor power supply performance, switch between single and multi-rail modes, and control fan speed directly from your desktop. The fully modular, flat cable set simplifies builds and upgrades, resulting in impressive outcomes.

The efficiency of 80 PLUS Platinum and Zero-RPM fan mode means that the fans do not rotate at all at low to medium loads. When the HXi is in operation, the thermally controlled fans only spin as fast as necessary.

Additionally, it is quieter than most power supplies even when the fans are not rotating. The HXi is built with capacitors and other internal components specially selected to reduce coil whistling and other electronic noise.

Connect the included cable to the motherboard's USB header and download the free Corsair Link Dashboard application for Windows. This allows you to monitor performance and efficiency, switch between single and multi-rail mode, and control fan speed directly from your desktop.

The fully modular flat cable set enables fast, easy installation and fantastic-looking builds. The fan's self-test switch allows you to quickly check the operation before connecting the cables to the mainboard.