sate slotFor 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,Does my Inspiron 15 3000(3501) have a 2.5 SATA slot? I have an Inspiron 15 3000(3501) and I want to add a 2.5 SATA 3(6 GBS) ssd to it alongside the M.2 NVME ssd.