If you're referring to the cable which connects the hard disk to the CPU, you should be able to get something suitable from a good computer service center. It's a standard 2.5" IDE hard drive connector. Otherwise you can order one from Generalmusic service, (in the US) at (630) 766 8230. if you're not in the U.S.A please let me know your location and I can point you in the right direction.

Chris