This article covers NZXT C850 ゴールド ATX 3.1.

Overview

The NZXT C850 Gold ATX 3.1 is an 850W fully modular power supply with 80PLUS GOLD certification, compliant with the latest ATX 3.1 standard. Its all-Japanese capacitor design ensures low ripple noise and improved hold-up time, while the 135mm fluid-dynamic bearing fan operates in zero-RPM mode up to 50% load for silent operation. The integrated 12V-2x6 connector can deliver up to 600W to NVIDIA GeForce RTX 40-series graphics cards, making it an excellent choice for high-performance gaming builds. This PSU targets the mid-high to high-end segment, offering a balance of efficiency, quiet operation, and future-proof connectivity. It ships with a fully modular cable set, allowing clean cable management and optimal airflow inside the case.

Compatibility Guide

The NZXT C850 uses the standard ATX form factor (150×150×86mm) and fits most ATX cases. It provides two CPU EPS12V 4+4-pin connectors, one dedicated 12V-2x6 GPU connector, plus multiple SATA and peripheral cables. The 12V-2x6 connector is directly integrated, eliminating the need for adapters with RTX 40-series cards. For older GPUs, standard 6+2-pin PCIe cables are included.

Product Info

Released in late 2024, the NZXT C850 Gold ATX 3.1 is available through major retailers like Japan at around ¥80,000 (price subject to change). It comes with a 10-year warranty, reflecting high reliability expectations. The 80PLUS Gold certification guarantees efficiency between 87-90% under typical loads. In the market, it sits in the upper mid-range PSU tier, competing directly with other premium 850W Gold units.

Best Use Cases

High-end gaming PCs: Perfect for builds featuring RTX 4070 Ti SUPER or RTX 4080 SUPER, thanks to the direct 12V-2x6 connection and sufficient 850W capacity. Silence-oriented builds: The zero-RPM fan mode and fluid-dynamic bearing keep noise levels very low, ideal for home theater or quiet office setups. * First-time builders: Fully modular cabling simplifies installation—connect only the cables you need for a clean, hassle-free build.

Things to Consider

While 850W is ample for most single-GPU gaming rigs, it may be tight for top-tier configurations like an Intel Core i9-14900K paired with an RTX 4090. In such cases, a 1000W+ unit would be more appropriate. Note that the NZXT C850 uses the newer 12V-2x6 connector standard, not the older 12VHPWR. RTX 30-series GPUs will need the provided 6+2-pin PCIe cables instead. The PSU is physically standard ATX, so it fits most cases, but verify case depth if using a very compact chassis. Competitors include the Seasonic Focus GX-850 and Corsair RM850x, both offering similar specs. The NZXT stands out with its 100% Japanese capacitors and integrated 12V-2x6 connector, but potential buyers should compare fan noise profiles and warranty terms before deciding.

Product Disclosure (Amazon)

  • Manufacturer: NZXT
  • Seller: ジェネロシティー
  • Fulfilled by: ジェネロシティー
  • ASIN: B0DCJCGZW5
  • Note: This article covers a manufacturer-made product based on Amazon listing details.