Tripp Lite USB to RS485/RS422 FTDI Serial Adapter Cable with COM Retention ( USB-A to DB9 M/M), 30 in. - USB / serial - U209-30N-IND - USB Adapters - CDW.com
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Startech.com 6 Ft Professional Rs422/485 Usb Serial Cable Adapter W/ Com Retention (icusb422) - Serial Adapter - Usb - Rs-422/485 - Walmart.com
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