StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - Serial Cables - CDW.com
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C2G 5ft USB to DB9 Serial Cable - RS232 Adapter Cable - serial adapter - USB - RS-232 - 26887 - USB Adapters - CDW.com
Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter FTDI, w/ COM Retention - serial adapter - USB - RS-232 x 2 - U209-006-2 - USB Adapters - CDW.com
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