Sky-Watcher connection cable between Synscan hand control firmware update cable (supplied with Synscan telescopes, mounts and upgrade kits) and USB port of a PC. Simple “plug and play”. Can also be used to connect other accessories with a serial interface (RS232) to the PC via USB. Cable length 1.5 meters. Fully compatible with USB1.2, supports RS232 interfaces. Data transfer rate over 250 Kbps. Supported operating systems: Windows XP / 7 / 8 / 10. Scope of delivery: Serial RS232 to USB cable! Power supply and batteries are not included!