Abstract: There is disclosed a system for mounting a computer module, such as a disk drive, hard drive, tape drive, compact disk drive, tape or other similar backup device, etc., in a computer structure, such as a computer chassis or frame, or the like. The system comprises paired guides for attachment to the module, typically in precut openings therein, and a shuttle. The shuttle is adapted to receive the guides in a secure fashion, to retain the module securely therein. The shuttle is designed to be easily mounted in the computer structure, and in particular, by a "two handed" mounting in the computer structure. This system can also be used for "shock mounting" of a computer module, provided the guides are made of a shock absorbing material.