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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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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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USB 2.0 To Serial DB9 Male (9 Pin) RS232 Cable Adapter - Sabrent
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StarTech.com 4 Port PCI Express RS232 Serial Adapter Card with (PEX4S553B)
Amazon.com: CABLEMAX USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable : Electronics
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US-101 1 Port RS232 USB to Serial Adapter - Brainboxes
USB to RS-232 2-Port DB9 Serial Adapter/Converter Multi-2/USB RS232 – Envistia Mall
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