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Coolgear 12in. High-Speed USB to RS-232 Serial DB9 Adapter Cable - Windows 7/8 : Electronics - Amazon.com
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2-Port USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV Surge Protection & 3 ft. USB Extension Cable - Coolgear
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Amazon.com: Coolgear 12in. High-Speed USB to RS-232 Serial DB9 Adapter Cable - Windows 7/8 : Electronics
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Amazon.com: Coolgear 12in. High-Speed USB to RS-232 Serial DB9 Adapter Cable - Windows 7/8 : Electronics
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