I've a DELL Optiplex GX50 small profile desktop which has space for a half-height CD or DVD drive - it was a networked PC and did not come with a CD drive. DELL do not stock replacement CD drives any more so I acquired a Panasonic SR-8171 DVD/CD drive not realizing this device is usually used in laptops, it's the right size but doesn't have the EIDE/power sockets I'm used to on desktops - the device in question has only one socket, presumably some of the connectors carry power. I've web-searched in vain for cables that allegedly connect a laptop drive to a desktop m-board - do such cables exist?