The power module set by Groupe Lacasse has one large power and communications module that goes in the center of a table and two smaller ones for each side. All together it includes four standard AC power outlets, two USB-A, two USB-C and one blank spot where you can install your choice of voice coupler, data jack, HDMI connector, VGA coupler, USB 3.0 coupler and a USB charging coupler.  Voice, data, video and communications couplers are sold separately.