jenniferT

Every modern day graphics card come with PCI Express x16 connector that goes in the PCI Express x16 slot of your motherboard. Even some mid-range graphics cards can also work on the power from the PCI Express x16 slot alone but higher mid-range graphics cards and high-end graphics card requires external power from the PSU through 6-pin and 8-pin power connectors.

yes, you can use either type 3 on all cables but type 3 or type 4 for PCie is ok