Disclosed herein is a data storage module for use with and insertion into a bay of a computer. The module may comprise a casing that has a first end and a second end. The module also includes two or more storage medium components contained within said casing, wherein said two or more storage medium components are physically isolated from each other. This enables the provision of two separate storage medium components with different operating systems or user information and/or data to be provided on a single hardware module.