YiFeng Exquisite Design USB 3.0 PCI-E Riser Adapter Board Card PCIE Rabbet Ethereum Mining ETH (4 in 1)

so this is my mining rig here I'm currently mining if you're in classic I've got one XFX and 3 different gigabyte video cards they're all mining from this one single motherboard down here it's got one x16 slot and three x1 slots I'm getting about twenty nine point eight mega hashes per second on each card and this is running great but I'd like to add a few more GPUs and this motherboard only has four slots now I could go out and buy a motherboard with seven eight I've seen some even with ten slots but the thing is is I already have this motherboard from a previous project and by the time I go and buy a new CPU new Ram a new motherboard I'm talking probably a few hundred dollars at minimum so the other day when I was on Amazon I came across this card that's called a PCIe riser extender for a Bitcoin litecoin eth basically it goes in an x1 slot and it provides inputs for up to four additi