The ATX2PW450BR 450 Watt 80 Plus Bronze Power Supply offers an energy efficient replacement or upgrade for powering your desktop PC. Operating at an 82% to 85% efficiency between 20% & 100% load, 80 Plus Bronze power supplies deliver a significant improvement over standard-efficiency power supplies that helps reduce energy consumption & cost of operation. This versatile power supply is equipped to support AMD or Intel CPU-based servers & workstations with a combined 20/24-pin motherboard connection, & an 8-pin EPS connector. The ATX2PW450BR is backed by a Star Tech.com 2-year warranty & free lifetime technical support. The Star Tech.com Advantage Reduce operation cost & energy consumption with 80 Plus Bronze-certified power supply Universal compatibility supporting EPS & ATX Intel/AMD motherboards