sate slotMost desktop 2.5 drive bays are open-top, open-back and can handle any 2.5 drive, but occasionally you'll find a slot bay desned for one specific heht of drive (usuallyFor example: If the voltage on the notch is 1.5v then our ram slot desn for DDR3. 5. AGP PCI PCI Express: These are three different types of slots,