A USB flash drive formatted for use with your Xbox 360.
To edit your Fallout 3 saves, you will need a combination of hardware and software: fallout 3 xbox 360 save editor
The process involves moving your data from the console to a PC, applying changes, and then securing the file back onto the Xbox 360. Modding Fallout 3 Xbox 360 With Horizon A USB flash drive formatted for use with your Xbox 360
