Instructions
Turn off the Xbox 360 console and then press the release bottom on the front of the hard drive, just below the slope. Lift the drive off of the console to remove.
Plug the transfer cable onto the terminals on the old hard drive. Plug the transfer cable's USB plug into the USB port on the front of the new Xbox 360 console.
Turn on the new Xbox 360 console.
Select "Yes, Transfer To Console" from the "Transfer Content" menu that automatically appears on the screen.
Select "Start" to begin transferring the content from your hold hard drive to your new Xbox 360 console.