Celestron Telescope Cable USB port to RS-232 / Serial Computer PC Adapter/Conver is a part of the high quality and dependable Telescope Accessories from Celestron. All of the features you need for a price you want. Telescope Acces
Model: 18775. This cable converts Celestron’s standard serial cable into a USB cable; it is helpful for laptop users or for those who prefer using a USB connection rather than a serial connection.