Features:1. Rated Power: 400W, Peak Power 550W2. Version: Intel ATX 2.31 Version3. 2x (6+2P) interfaces, 2 isolated+12V rails, support high-end graphics card and PC system.4. 2 ounce copper PCB (maintaining stability is of top priority ,twice material ,twiceefficiency) 5. With 12cm ball bearing mute fan, and intelligent temperature control..