The Go2Nova Hand Controller 8410 from iOptron offers the latest in automated tracking technology. It has an easy-to-use hand controller and an 8-line LCD screen, so you can easily set up the telescope and select where you want to go with the user-friendly interface. The control system also allows you to slew the telescope at nine different driver speeds, keeping the object within the telescope's viewfinder for as long as you wish. Go2Nova also makes alignment quick and simple. The hand controller has an HBX port. It does not have an RS-232 or USB port for firmware upgrade. The firmware is upgraded/reloaded through the mount.