High Power SI-A400M2 400-Watt Dual-Rail 12V Output ATX12V V2.0 Power Supply High Power SI-A400M2 RoHS Compliant power supply with solid 400-Watt Performance. UL Approved for safety. Additionally approved by cUL, FCC, CB, and CE. ATX12V 2.0, Dual-Rail 12V outputs, Dual SATA power connectors built-in (Right angle type to reach tight corner). PCI-Express power connector built-in, Automatic fan speed control (AFC), Fan Speed Monitor connector (3-pin) Built-in Triple Protection: Over-Voltage Protection, Over-Power Protection, and Short-Circuit Protection, Galvanized steel casing for long rust-free protection Recommended by AMD for Athlon/Thunderbird/Duron, Supports Pentium 4 processors or Intel Core 2 Duo Processor