When I plug in the drive, the LED comes on and I can feel it spinning, but it doesn't show up in device manager, computer manager, WD Discovery, Seagate's Seatools, Easeus recovery, absolutely nothing. I've even tried a different cable and different machine but it's the same story. My computer doesn't even give me the "safely remove" option down in the toolbar. It's as if the drive simply doesn't exist, but I can see that it is at least receiving power. I even have an older My Passport Ultra that works flawlessly with the same cable, so I am absolutely lost. Any help would be greatly appreciated!