National Instruments
USB TO RS485 CONVERTER, 4PORT, 460.8KBPS; Product Type:USB-485 to RS-485 Converter; No. of Ports:4 Port; Data Rate:460.8Kbps; Bus Connector Type:USB 2.0; For Use With:NI Electronic Test and Instrumentation; Product Range:USB-485/4 RoHS Compliant: Yes