About NZXT C1200 Watt ATX White Desktop SMPS
| Category | Specification |
|---|---|
| Model Name | NZXT C1200 Gold ATX 3.1 (White) |
| Total Power Output | 1200 W |
| Efficiency | 80 PLUS Gold certified (up to ~91.6 % at 50 % load) |
| Input Voltage | 100 – 240 VAC, 50/60 Hz |
| Power Factor Correction | Active PFC (≈0.99) |
| DC Output Rails | +12 V: 100 A (1200 W)+3.3 V & +5 V: 22 A (120 W)5Vsb: 3 A (15 W) |
| Connectors | 1 × 24-pin ATX1 × 4+4-pin CPU1 × 8-pin CPU3 × 6+2-pin PCIe1 × 12V-2×6 PCIe (16-pin)12 × SATA4 × Peripheral |
| Cable Sleeving | Nylon sleeving on all main cables |
| Cooling Fan | 135 mm FDB (Zero Fan Mode under light load) |
| Fan Speed | Up to ~2300 RPM |
| Noise | Silent under low load / up to ~44.5 dBA max |
| MTBF | ~100,000 hours |
| Operating Temp. | 0 °C – 50 °C |
| Dimensions | ~150 × 86 × 160 mm |
| Protections | OVP, UVP, OPP, OTP, OCP, SCP |
| Compliance | ATX12V v3.1 / EPS12V v2.92 |
| Materials | Steel, PCB, Plastic |
| Warranty | 10 Years |
At its core, the NZXT C1200 Watt ATX White Desktop SMPS delivers 1200 W of continuous power with an 80 PLUS Gold efficiency rating.
This ensures that the unit operates with high energy efficiency across typical computing loads, reducing internal heat generation and lowering overall system power consumption.
Such efficiency is particularly beneficial for users running demanding applications, multi-GPU setups, or extended gaming sessions.
One of the standout design features of the NZXT 3.1 White Desktop SMPS is its fully modular cable architecture.
This means you only install the cables necessary for your build, eliminating excess wiring and improving airflow within the case.
All main cables come with nylon sleeving for added durability and ease of cable routing.
Whether building in a sleek small form factor chassis or a large enthusiast case, this modularity ensures a clean, professional finish and optimized thermals.
Cooling and acoustics are handled by a large 135 mm fluid dynamic bearing fan.
Under lighter loads, the PSU enters Zero Fan Mode, where the fan stops spinning entirely.
This provides near-silent operation during everyday tasks like web browsing, media playback, or light productivity.
When higher power is needed, the fan ramps smoothly to maintain optimal temperatures, balancing performance with quiet running — a key consideration for noise-sensitive builds.
The NZXT C1200 Watt ATX White Desktop SMPS also meets the needs of cutting-edge GPUs thanks to its inclusion of a 12V-2×6 (16-pin) PCIe power connector capable of delivering up to 600 W to compatible graphics cards.
Alongside multiple standard PCIe and CPU power connectors, this NZXT 80 Plus Gold Fully Modular SMPS supports a wide variety of high-performance components without compromising power delivery, ensuring stability even under peak loads.
In terms of electrical performance, the NZXT C1200 Watt ATX White Desktop SMPS employs Active Power Factor Correction (PFC) and robust voltage rail design to maintain clean and stable power.
Comprehensive protection mechanisms — such as overvoltage, undervoltage, overcurrent, and short circuit protection — safeguard your system against electrical faults.
The use of 100 % premium Japanese capacitors further enhances reliability and extends operational longevity.
Physically, the PSU’s white finish complements themed builds and modern PC aesthetics, matching with white cases and components for a unified visual appeal.
NZXT White 1200 Watt Desktop SMPS compact size ensures compatibility with a wide range of chassis, while the extensive connector set supports even complex multi-drive and multi-component builds.
Backed by an industry-leading 10-year warranty, the NZXT C1200 Watt ATX White Desktop SMPS offers peace of mind for enthusiasts and professionals alike.
Whether you’re building a high-performance gaming machine, a content creation workstation, or a powerful productivity PC, this PSU delivers consistency, efficiency, and style that stands up to long-term use.

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