NZXT C850

The NZXT C850 is an 850-watt fully modular power supply built for enthusiasts who want dependable performance without unnecessary bulk or noise. Carrying an 80 PLUS Gold certification, it delivers efficient power conversion that keeps heat output low and electricity waste to a minimum, which matters both for your wallet and for the overall thermal environment inside your case. The unit uses a compact 140mm chassis design, making it easier to fit into smaller builds or cases with tighter PSU shrouds, while still providing enough wattage to comfortably run a high-end gaming rig with a power-hungry GPU and multi-core CPU.

Internally, the C850 relies on a dual ball-bearing fan paired with NZXT's Zero RPM mode, which keeps the fan completely off during low and moderate load conditions. This translates into near-silent operation for everyday tasks like browsing, working, or light gaming, with the fan only spinning up when thermal demands actually require it. The fully modular cable design means builders only connect the cables they need, reducing clutter inside the case and improving airflow around components like the graphics card and motherboard. Flat, ribbon-style cables further simplify routing and cable management, which is especially useful for builds showcased behind tempered glass panels.

Durability and safety are also central to the C850's design, with a 100% Japanese capacitor build that supports long-term reliability under sustained loads. It includes a comprehensive suite of protections covering over-voltage, under-voltage, short circuit, and over-power scenarios, giving builders peace of mind when powering expensive components. Backed by a 10-year warranty, the C850 is positioned as a long-term investment rather than a disposable part, fitting naturally into NZXT's broader ecosystem of cases and components for builders who value a clean aesthetic, quiet operation, and consistent power delivery across demanding custom PC builds.