StarTech.com USB to Serial Adapter – 2 Port – RS232 RS422 RS485 – COM Port Retention – FTDI USB to Serial Adapter – USB Serial
<div style="text-align: left;"><strong>[Product Information]</strong>
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<li><span class="a-list-item"> This single adapter is compatible with any serial device protocol (RS232， RS422， and RS485)， and even allows mixing protocols for simultaneous communication over both ports </span></li>
<li><span class="a-list-item"> COM retention saves the assigned port settings for the device， so disconnecting/reconnecting is hassle-free </span></li>
<li><span class="a-list-item"> USB Powered - no power outlet required， and no cumbersome AC adapter to carry around </span></li>
<li><span class="a-list-item"> Backwards compatible with USB 1.1 </span></li>
<li><span class="a-list-item"> USB-powered; No additional external power adapter required </span></li>
<li><span class="a-list-item"> Both ports can function simultaneously with mixed or matched communication protocols </span></li>
<li><span class="a-list-item"> Includes a bracket for wall mounting the USB to Serial adapter </span></li>
<li><span class="a-list-item"> Features rugged screw-lock USB port to ensure cords are not accidentally disconnected </span></li>
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