Abstract: An articulated arm assembly for holding an electronic device includes a base having an enclosing housing defining a first channel, and an extension having a proximal end rotatably coupled with the base. The extension has an enclosing housing defining a second channel in communication with the first channel A forearm has a proximal end rotatably coupled with a distal end of the extension. The forearm has an enclosing housing defining a third channel in communication with the second channel. A pivotable mounting plate is rotatably coupled with a distal end of the forearm for mounting thereon the electronic device. A pre-installed cable extends through the first, second and third channels, and can be entirely concealed inside the enclosing housings of the base, the extension and the forearm.