Chieftec introduced Nitro series of 80 Plus Bronze and Silver compliant power supply units (PSUs), available in a wide range of price points. The series starts with 350W, 400W, 450W, and 500W models that have fixed, sleeved cables, are 80 Plus Bronze compliant, and are suitable for entry level gaming PCs. These offer basic power connectors which includes single 6-pin PCI-E, four SATA, three Molex, one floppy, and 24 + 4-pin CPU. These units are cooled by a 120 mm fan. Moving further into the series are 550W, 650W, 750W, 850W, and 950W models that offer modular cabling, and also sport 80 Plus Bronze compliance, and are aimed for mainstream-thru-performance segments of gaming PCs, with more connectors, including two PCI-E 6+2 pin connectors (for 550W, 650W models), or four 6+2 pin (for 750W, 850W, 950W models); six~eight SATA, four Molex, and 24 + two 8-pin CPU power. These are cooled by 140 mm fans. At the very top is the 1200W model, which boasts of even higher efficiency with is 80 Plus Silver compliance, and modular cabling. Connectors include 6x PCI-E 6+2 pin, 10x SATA, 8x Molex, and 24 + 2x 8 pin CPU power. Among all these, the first sub-series (350~500W) uses dual +12V rail design of 11~18A rails, the next sub-series (550~950W) with single rail design of 44~76A, and the 1200W one using two 50A rails. All these models will be priced typically in their respective market segments.