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Amazon.com: C2G Legrand USB to DB9 Serial Adapter Cable, Adapter Cable, USB to Desktop Adapter, 1.5 Foot Adapter Cord, Gray, 1 Count, C2G 26886 : Electronics
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Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics
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