This Cable is used to connect a 2.5" 44 pin Laptop Hard Drive to an I-Opener Computer. It is also used on other Special Projects where the Pins are reversed. (1,2)--(2,1), (3,4)--(4,3), (5,6)--(6,5), --------, (41,42)--(42,41), (43,44)--(44,43). Female 44-Pin connector on both ends