Alldock Universal Charging Station with 4 USB Outlets Small Size in Black Alldock universal charging system that can charge up to 4 devices at once Units are available in 3 different sizes and 3 different finishes Alldock charging system was a successful Kickstarter project One of the fastest charging systems available in todays market. Beautiful sleek design that will look attractive in any setting. Docking slots are 1/2" in width. Oversized device covers may prevent it from siding into place.