Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11am Fridays will not ship until the following Monday.
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Use iOptron's USB to RS232 Converter to connect a telescope mount's RS232 connector and your computer's USB port. This converter has been tested only for iOptron mounts, and is compatible with Windows XP/Vista/Win7/Win8/Win8.1 and Mac operating systems. Its USB 2.0/1,0 plug will work with USB 3.0 ports, and iOptron offers a FTDI driver as a free download from their website.