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AYA 25Ft (25 Feet) DB9 (9-Pin) Male to DB9 Female Serial Null Modem Cable 28AWG UL RoHS - Walmart.com
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Null-Modem Serial Cables
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5M 15FT 9 Pin Serial Null Modem Cable Cross Female to Female RS232 DB9 F-F | eBay
13657: Null Modem Cable, 9-Pin Socket (Female) to 9-Pin Socket...
Null modem - Wikipedia
Null Modem Cable Serial RS232 9 Pin DB9 Male to Female Gender Changer Lead UK | eBay
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18663: Null Modem Cable, 9-Pin PIn (Male) to 9-Pin Pin (Male)
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StarTech.com 10' RS232 Serial Null Modem Cable - 10ft Null Modem Cable - SCNM9FF - Serial Cables - CDW.com
Null-Modem Serial Cables
Crossover or "Null Modem" vs. Straight Through Serial Cable - Decisive Tactics, Inc.
10 Foot DB9 Female / DB25 Male Null Modem Serial Cable RS232
