(Auszug aus der Pressemitteilung)
The ATOP bridge card allows you to use your AGP-8x card with PCI-E mainboards. Your AGP-8x card simply piggybacks on the ATOP card’s AGP-8x slot located on the top edge. The ATOP card is then plugged into the mainboard’s PCI-Express slot. The only other installation requirements are replacing the bracket on the AGP-8x card with an ATOP bracket and installing the appropriate driver.