i tried to connect the sata to usb adapter from my broken Toshiba HDDR320E03E (2.5inch) external hard drive to my 3.5 Seagate internal drive. I want to ask why it doesn't show up in My Computer but show up on device manager in control panel. The Sata Hard drive can be detected and used when connected to sata on the motherboard. Can i power a 3.5 inch Sata drive using usb adapter from 2.5 inch external drive? Does it require more power so the computer can show it?