Note: This RG179 "Y" cable has a BNC jack at the Common end and breaks out into two six-inch legs with an SMB plug connector on each leg. The length you enter will be the inside length, measured from the back of the BNC Jack to the start of the breakout. (A one-foot cable would exit the Common end for one foot before splitting into the two six-inch legs.) Lengths less than four feet are non-returnable.