Computer hub with electronic receptacle that adjusts in volume to regulate electronic connection

A hub comprising:

• (a) a body configured to reversibly couple to a computer;
• and
• (b) an electronic receptacle that reversibly adjusts in volume between a first configuration and a second configuration by movement of an adjustable cover that remains connected to the body in both configurations by a pivot block formed by a body recess that accepts a rod from the cover, wherein the first configuration is sized to prevent electronic connection to a peripheral connector and the second configuration is sized to accept electronic connection to the same peripheral connector, and wherein the electronic receptacle is exposed in the first configuration, thereby selectively permitting communication between the peripheral connector and the computer only when in the second configuration.