I bought this in May '10 to extend the life of an old PC with IDE disk controllers. Great price for a good size in old technology. For almost five months it was great. But one day in October '10, without any warning whatsoever, it has stopped working entirely. As far as the computer sees, even in BIOS and even with swapping around the data and power cables and the jumper, the disk is simply not there (but a different disk is still working okay, so it is the new disk and not the controller which is the problem).