Embodiments of the present disclosure are directed toward techniques and configurations for alternate connection of two devices via multiple branches of a waveguide. In one embodiment, the apparatus may include a first device (e.g., a peripheral device), a second device (e.g., a computing device) mountable on the first device in a first or second position, and a waveguide substantially disposed in the first device to communicatively couple the first device with the second device. The waveguide may comprise a movable connector and first and second branches corresponding to the first and second positions. The movable connector may alternately communicatively couple the first device with the second device via the first or second branch and disconnect the second or first branch respectively in response to corresponding placement of the second device in the first or second position. Other embodiments may be described and/or claimed.