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
StarTech.com 3ft USB to Serial Cable USB to Serial Port Adapter RS232 DB9 Male to USB Prolific IC - 1P3FPC-USB-SERIAL - USB Adapters - CDW.com
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