SPARKLE ATX-450PN 450W ATX12V 2.2 Power Supply Fans: Internal 12V DC fan included Main Connector: 20+4Pin +12V Rails: 2 PCI-Express Connector: 1 x 6-Pin SATA Power Connector: 2 Power Good Signal: 100-500ms Hold-up Time: 12ms minimum at nominal input voltage Efficiency: 70%