Port-ability plus!Celestron's auxiliary port accessory was designed to expand an Advanced GT telescope's ability to interface with multiple devices including personal computers and the Celestron CN-16 GPS unit. The auxiliary port accessory's PC port allows a user to update motor control firmware downloaded from the Internet. It also has two auxiliary ports one for the NexStar hand controller and one for the CN-16 GPS accessory. The auxiliary port accessory can also be used on NexStar i series telescopes for upgrading motor-control firmware. This kit includes the auxiliary port accessory and the #93922 programming cable.Note: The auxiliary port accessory comes standard in the CN-16 GPS Accessory Kit for the Advanced GT Series (#93966). The programming cable is NOT included in that kit.Power your telescope with the Celestron Power Tank 17.
