In addition you also have access to install content from a FAT32 formatted USB hard drive.
You can then load XEX Menu directly from the dashboard, giving you FTP access to the Jtag or RGH hacked Xbox 360. You can burn the ISO of XEX Menu to a CD or DVD and place it in the Xbox 360.
The ISO version of XEX Menu is useful for people with new Jtag or RGH Xbox 360 consoles. XEXMenu has two different versions, which can be incredibly useful for different situations.