Modular design allows for each piece to be stacked together or used individually. Built-in USB ports and a dual integrated phone stand for device docking and charging. Includes two storage trays, an accessory tray, back channel, and an integrated holder for ultimate storage and organization. Cord wrap for easily managing wires and cables. Non-slip rubber feet protect surfaces. Includes 3 in micro USB cord for power. 3-year limited warranty. 4-piece set.