Cop Security 15-PC02SUSB to RS85 Converter with FTDI Chipset (Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>No power required</li><li>Built in 2KV surge protection</li><li>Built in 15KV Electrostatic Discharge</li><li>Half-Duplex USB 2.0 / RS-485 Converter</li><li>FCC &amp; CE Approved.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31sruG8KWML.jpg" noproxy>