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Geovision GV-COMV2USB 2.0, 12 Mbps, RS485+/RS485, Black The GV-COM V2 adds one RS-485 port to your computer through a USB connector. The GV-COM V2 can convert the stan
Geovision GV-COM V2The GV-COM V2 adds one RS-485 port to your computer through a USB connector. The GV-COM V2 can convert the standard RS-232 signal, through USB connec
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