| Brand | Unbranded |
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Check the listing for details. [ Ocean Controls KTA-223 ] USB/RS485 I/O Controller (Relayduino). Condition: New. Listed at 139.00 USD. USB Virtual Serial Port or RS485 Input. Easily connect multiple units far apart by RS485. 0-5V or 0-20mA Analog Inputs, Jumper Selectable. All enclosed in a Professional looking plastic case. Accepts Arduino Shields (Ethernet / XBee).