Lock: Prevent the thief to take the VGA Card or HDD or RAM......inside of the Case

HDD Drive: Support 2 HDDs, Save Money and Save the space. Just use the Norton Ghost to install. You can also Copy the Game Software or Windows OS into the HDD by INTRANET. No need CD-ROM and FDD.

USB+AUDIO: Support External USB Port + Micro Phone Port + Headphone or Speaker. Easy Install!