Quick question for everyone. The motherboard I am looking at listed in its manual that PCIE2 and PCIE4 slots were required for 2 way SLI configuration. Based upon the included diagram, taken directly from the manual, which SLI bridge would I need to buy for this? They’re different standards, different slots, and different expansion card types. AGP: The Accelerated Graphics Port slot was designed specifically to handle high-end graphics adapters. It may still be found on older PCs, but today’s systems use PCI-Express expansion slots to handle high-end graphics adapters.