This handy one-piece cable allows you to connect your Nexstar handset to your computer and enable remote control using Celestron's Nexremote software and other third-party applications. Also used for upgrading the handset firmware.

One end of the cable has a 4 pin modular plug which connects to the telescope's handset. The other end has a USB plug which connects to the PC's USB port. The cable contains a USB to serial converter and appears as a COM port on the PC. Length approx. 5 metres (16 feet). High quality fully screened/shielded flexible cable.

This cable is effectively the same as using a serial RS232 cable with a USB to serial converter, except of course it is a lot neater and more convenient.

Our standard cable uses the SiLabs CP2102 USB to serial chipset.

This premium version uses the FTDI FT232RL chipset.

Both work with all current versions of Windows.

For more detailed information please read our USB chipset information page.

Not suitable for recent (2019 on) handsets which have a mini USB connector - only handsets with square 4 pin modular socket as pictured.

Important: Connect the cable to the handset only. DO NOT connect to your telescope mount.