i stole the drive out of an old dvr i had, and had hopes of using it as an external drive. I seem to have run into a problem. The only way i can get the drive to work is by powering it up connected to the dvr, then unplugging the sata serial data from the dvr and plugging it into my sata to usb adapter. When i try skipping that step it only shows up in device manager as a generic usb storage device. It acts like its not getting the signal to turn on. I have used the drive several times as described but it seems to me there is a way around using the dvr for startup