I need help with identifying hard drive slots in my pc

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, used to connect external peripheralHi, i want to upgrade my pc with an SSD and want to identify if i have a vacant slot to put one in, and if yes, what type of slot it is, so that i can buy the rht type of SSD. Here is a picture of my