The disclosed invention relates to a computer system, including a crib device and chassis for installing and removing a hard drive to and from the chassis of the system. The drive is securable to the crib device, which has a handle that allows the drive to be carried to and away from the chassis. The crib device and chassis have cams and cam engaging surfaces that cause the crib device and drive to move to effect engagement and disengagement of the electrical connectors of the computer system and drive. Also disclosed is a mounting arrangement for a floppy disk drive and CD-ROM drive.