WD elements 1042 500gb external hdd not initializing

My WD elements 1042 500gb external hdd not showing up on computer(tried multiple computers) running win 8, win7, win xp.

but when I goto disk management it shows up there and says “disk 1 not initialised” and when i try to initialize it shows “I/O error” tried both gtp and mbr pls have some suggetions, thanks in ADVANCE

This particular error usually indicates a connection problem.

Make sure to try using a different cable and also try connecting to a wall outlet with a different power cable if possible.