Computing housing mounting arrangement

A computing device, comprising:

• a plurality of internal computing components;
• and
• a modular computing housing assembly containing the plurality of internal computing components therein, the modular computing housing assembly including:
• an enclosure defining an internal volume containing at least a portion of the plurality of internal computing components therein, and
• a mounting arrangement located along a mounting outer surface of the enclosure, the mounting arrangement including one or more spring clips configured to move between different positions, wherein each of the one or more spring clips is a bistate spring clip configured to operate in a first state under a first biasing spring force and alternatively in a second state under a second biasing spring force, and wherein pushing the mounting arrangement against a separate external rail results in actuating each spring clip to move from a closed position to an open position to pass the external rail past the spring clip and then to move back to the closed position by way of the first biasing spring force to lock onto and mount the entire computing device onto the separate external rail.