This Geforce 9600 GSO is made by Zotac with the model number: "ZT-96SES4P-FCL" and is based on a card from the Nvidia Geforce 9000 series of graphics cards. The video card has 512MB of DDR3 memory running at a speed of 1000MHz and a core with a clock speed of 700MHz. The Zotac website calls this card "Zotac GeForce 9600 GSO AMP!". This graphics card uses a fan to cool the components. SLI is Nvidias technology used to connect multiple graphics cards on one system. The Geforce 9600 GSO has support for 2 way SLI. This is a single slot video card and requires a 400 watt PSU. This graphics card can use any of the following ports to connect to a monitor: 2 x DVI. 1 x S Video.