Use a 24-pin ATX power supply for the best performance, especially if a dedicated graphics card is installed.
: 1 x D-Sub (VGA) and 1 x DVI or HDMI (varies by specific model revision). : 4 x USB 2.0 ports. Networking : Integrated Gigabit Ethernet (10/100/1000 Mbps). : 2 x PS/2 ports for keyboard and mouse. : Integrated 5.1-channel HD Audio codec. Internal Headers Front Panel Audio header for case jacks. USB 2.0 headers for additional front-facing ports. Standard 24-pin ATX and 4-pin 12V power connectors. m.media-amazon.com Manual Motherboard H61S Series | PDF | Bios - Scribd samsung h61s1 manual