This adapter allows you to connect your Meade ETX/LX90/LX200 telescope to your PC through a high speed USB port, rather than through a slower serial port. This is particularly useful with the laptop computers most astronomers use to control their scopes in the field, as these portable computers now rarely include a DB-9 or DB-25 serial port.
The USB adapter includes a short cable with a DB-9 connector at one end and a USB connector at the other. An in-line inductor helps eliminate electromagnetic interference. The DB-9 end of the USB cable is designed to mate with the DB-9 connector on the Meade #505 or #1560-2 cables normally used to connect a Meade scope to a computer.
The USB end of the cable plugs into your computer. A 3.5 floppy disk is included that contains the necessary software program your computer needs to convert the serial signals to and from the scope to USB format signals that the computer and computer control programs can recognize.