How To Check PCIe Version of Slot and Motherboard

BTW can I ask which board you did? Its a subtle ~1mm offset, but this is what the back of the case I did looks like, which is technically not

The traditional Mini PCI slot , the full height Mini PCIe slot , and the half height Mini PCIe slot The Mini PCI cards

what is slot machine volatility PCI vs PCIe Slot · PCI-E x16 slot: It is 89mm long and has 164 pins It is often used for graphics cards and backward compatible with x1 x4

what is a tf slot PCI Express is a serial connection that operates more like a network than a bus Take a look at these PCI Express pictures to learn more