Patent ID: 8391021

Claim:
A portable electronic apparatus comprising (a) a body having a pair of surfaces each with an open channel for receiving a connector assembly; (b) a user interface on the main body; (c) circuitry in the body and communicative with the user interface; (d) an electrical interface on the body and communicative with the circuitry and configured to receive power or communicate data or both with an electrical interface of a compatible device; (e) a connector assembly seated in the open channels and comprising a pair of rails, each rail having a longitudinal member in one of the open channels, each longitudinal member having at least one recess configured to engage a tooth of a locking arm of the compatible device; and (f) a fastener removably fastening the rail to the body; and wherein each open channel extends along a respective side surface of the body and along a portion of a bottom surface of the body, and the connector assembly comprises a pair of rails each seated in a respective open channel and each having a longitudinal member and a lateral member extending from one end of the longitudinal member.