Instructions
Remove the Hard Drive From Old Console
Turn off the Xbox 360.
Turn the Xbox 360 so that the hard drive is facing you.
Press the hard drive release button and pull the hard drive off the console.
Transfer the Content to Another Console
Connect the transfer cable to the old hard drive by connecting the adapter on the transfer cable to the port located on the bottom of the hard drive.
Connect the other end of the transfer cable to the USB port on the back of the console.
Turn on the new Xbox 360. The dashboard automatically recognizes the transfer cable connection and displays a "Transfer Content" dialog box.
Select "Transfer to Console" and press the "A" button. This loads a dialog displaying all the content stored on the old drive.
Select "Start" and then press the "A" button.