NZXT C1200 1200W 80 + Gold Fully Modular ATX 3.1 Power Supply

The NZXT C1200 is a 1200-watt fully modular power supply built to the ATX12V v3.1 and EPS12V v2.92 standards, making it a well-suited foundation for high-end PC builds that demand both headroom and efficiency. Its 80 Plus Gold certification means it achieves up to 91.6% efficiency at 50% load (115 Vac), reducing wasted heat and keeping your electricity bill in check over extended gaming or workstation sessions. For users pairing their system with a demanding discrete GPU, the C1200 includes a single 16-pin (12+4) 12V-2x6 PCIe cable capable of delivering up to 600 watts — directly compatible with NVIDIA GeForce RTX 40 Series graphics cards. Three additional 6+2-pin PCIe cables provide flexibility for multi-GPU or legacy configurations. All cables feature nylon sleeving and are fully modular, so only the connectors you need go into your case, keeping airflow unobstructed and cable routing clean. Cooling is handled by a 135mm fluid dynamic bearing (FDB) fan with a Zero Fan Mode: below 50% load the fan stops entirely, resulting in completely silent operation during light tasks. When the system demands full power, the fan spins up to 2,300 RPM (±10%) and moves a minimum of 93.02 CFM of air, with a maximum noise level of 44.5 dBA. The unit operates reliably across a temperature range of 0–50 °C and carries a rated MTBF of 100,000 hours. Internal build quality centres on 100% Japanese capacitors, which contribute to stable power delivery with minimal ripple noise and improved hold-up time. A comprehensive protection suite covers overvoltage (OVP), undervoltage (UVP), short circuit (SCP), over-temperature (OTP), overpower (OPP), and overcurrent (OCP) scenarios. Active power factor correction reaches 0.99, and the unit accepts a wide AC input range of 100–240 Vac. The physical footprint is compact at 150 mm (W) × 86 mm (H) × 160 mm (D), freeing up space inside mid-tower and larger cases for improved cable management. NZXT backs the C1200 with a 10-year warranty, and the unit holds certifications including FCC, CE, CB (IEC 62368-1), UKCA, TUV, cTUVus, CCC, BSMI, BIS, RCM, and KC. Verified Specifications: • Wattage: 1200W total (12V rail: 100A / 1200W) • Efficiency: 80 Plus Gold — 90.1% @ 20% load, 91.6% @ 50% load, 88.7% @ 100% load (115 Vac) • Standard: ATX12V v3.1 / EPS12V v2.92 • Fan: 135mm FDB, 2,300 RPM max, Zero Fan Mode below 50% load • PCIe Cables: 1× 16-pin 12V-2x6 (650mm), 3× 6+2-pin (650mm) • CPU Cables: 1× 4+4-pin (700mm), 1× 8-pin (700mm) • SATA Connectors: 12 (via cables at 500+150mm) • Dimensions: 150 × 86 × 160 mm • Warranty: 10 years • Part Number: PA-2G2BB-UK