In embodiments of an extendable connecting link, a first link section attaches in a first housing part of a device and a second link section attaches in a second housing part of the device. The first and second link sections interlock and slide-engage relative to each other. An interconnection channel routes an electrical interconnection between the first housing part and the second housing part of the device, where the interconnection channel is formed when the first and second link sections are slide-engaged. The first and second link sections also slide relative to each other to increase or decrease a length of the extendable connecting link.