This 550 Watt ATX12V 2.01 power supply offers a professional-grade PC power solution, with support for modern Intel and AMD dual-core CPU designs as well as PCI Express and SATA device connections. Compliant with ATX12V 2.01 revision standards, the power supply offers dual 12V power rails and ensures broad compatibility with a 20/24 pin motherboard connection. Designed to provide dependable, long-lasting power to your hard working AMD or Intel CPU based system, the 550 Watt power supply features an 120mm dual ball bearing fan to help keep the PSU cool. To ensure stable power delivery to the most demanding devices, the power supply features Quad+1 protection against short-circuit, over-power, over-voltage and no-load situations. This high quality, professional-grade ATX12V 550W power supply is backed by StarTech.com's 3 year warranty and free lifetime technical support.