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Tripp USA-19HS | Tripp Lite USA-19HS Keyspan USB to Serial Adapter - USB-A Male to DB9 RS232 Male, 3 ft. (0.91 m), TAA
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Tripp Lite Keyspan High Speed 4 Port USB to DB9 Serial Adapter Hub - serial adapter - USB - RS-232 x 4 - USA-49WG - USB Adapters - CDW.com
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Tripp Lite USA-49WG USB-A to Serial Adapter Hub (DB9) - Keyspan, High-Speed (M/M), 4-Port - Critical Power Supplies
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