2u riser with 1-1X and 1-16X slots only Quantity in Basket:noneCode: 2U-Exp1X16X Price:$60.00Shipping Weight: 1.00 pounds Quantity: This 2U PCI Express riser has one X16 and one X1 slots It goes into B-position PCI Express X1 slot on you MB! The X16 slot with ribbon can go into C-position with Express 16X/8X/4X/1X slot on you MB! Note: A MB that works with this riser is like SUPERMICRO C7SIMQ! Please see the picture below for reference!