Chieftec Stealth 1200W (SPX-1200-FC)

The Chieftec Stealth 1200W (SPX-1200-FC) is a full-size ATX power supply designed for high-performance gaming and workstation systems where modern graphics card power delivery, high efficiency, and robust +12 V rail capacity are essential. This unit complies with the ATX 12V 3.1 standard, supports PCIe Gen5, and features two native 12V-2x6 connectors, making the Chieftec Stealth 1200W (SPX-1200-FC) ideal for builds with modern high-end GPUs without requiring adapters. The power supply is certified 80 PLUS Platinum, built on an LLC Half-Bridge topology with DC-to-DC conversion, and uses Japanese capacitors to ensure stable voltage delivery under sustained loads. The +12 V rail delivers up to 100 A or the full 1200 W, while the +3.3 V and +5 V rails combined provide 100 W of capacity. The design is fully modular, allowing you to connect only the cables you need, and the case depth of 140 mm ensures compatibility with many mid-tower enclosures. Cooling is handled by a 135 mm fan mounted on FDB bearings, and protection features include OPP, OTP, OVP, SCP, SIP, UVP, and OCP. The cable set includes one 24-pin ATX connector, two EPS connectors for the processor, three PCIe 6+2-pin connectors, two 12V-2x6 connectors, ten SATA connectors, and two Molex connectors, making the Chieftec Stealth 1200W (SPX-1200-FC) suitable for single-GPU systems as well as configurations with numerous storage drives and peripheral devices.