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RS232 DB9 9 Pin Female To TRS 2.5mm Male Stereo Serial Data Converter Cable 6Ft | eBay
StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable - Add an RS232 serial port
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Sabrent USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC1K) - Walmart.com
Amazon.com: DTech 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics
Plugable USB to RS-232 DB9 Serial Adapter PL2303-DB9 B&H Photo
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1.5ft (0.46m) USB to DB9 Serial RS232 Adapter Cable | Adapters and Couplers | Audio Video