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Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics
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35ft (10.7m) Serial RS232 DB9 Null Modem Cable with Low Profile Connectors F/F - In-Wall CMG-Rated | Serial RS232 | Computer Cables | USB and PC
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