This is the Draper TorkStar/Signature/Series V Direct Cable Kit. It is part of the TorkStar Utility Line Set.
The TorkStar Utility Line Set is a sophisticated, motorized system that allows you to raise and lower items that are routinely used in a wide variety of venues such as stage productions, gymnasiums and churches. It consists of a motor winch and one or more PosiSpools, connected by a drive shaft and mounted to the ceiling structure. TorkStar utilizes aircraft cable lift lines with a lifting capacity of 500 pounds each.
Note! Important: Both Draper and B&H strongly advise that you contact Draper customer service at 1-800-238-7999 prior to purchasing any part of this system. Proper selection of this system's components depends on several factors such as your local building code and construction needs.