APOLLO Micro SFX-G ATX 300W replacement for E-machine, HP, Compaq, Gateway. The Athena Power Apollo AP-MP4ATX30 Replacement SFX Power Supply is a high performance 300 watt Micro ATX power supply which is specially design for slim computer power supply replacement use for micro platform system. It features 20+4 Pin ATX connector that delivers flexibility on more motherboard selections. It also features both SATA and Molex Power Connector cable for HDD and media drives upgrade along with Smart Auto Fan Speed Control allows you to bring down the temperature of the power supply. It comes with ultra silence technologies that reduce fan noise/ripple of the power supply.