two pci?

EVGA 512-P3-N873-RX GeForce 9800 GTX+ 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card

this is the card i want but people are saying that it needs a two pci thing on customer reviews

i have a 750i evga motherboard do i need to get another piece or part

it doesnt come with anything but the card because it is recirtified

The video card takes up so much space, that it takes up to an additional slot perhaps covering up your PCI slots which can be used for a sound card or wireless network card? Or is it that this recertified card does not have a Molex to PCI-E power adapter so you need to go buy one if you Power supply only has 1?