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$27
Ativa USB 2.0 to Serial Adapter 1 RS~232 DB9 Black 26847
StarTech.com 3 USB to RS232 DB9 Serial Adapter Cable M M
Tripp Lite Adapter Cable ~ USB~C to DB9 Serial M M 5ft. Cord Up to 230
StarTech.com USB to Serial RS232 Adapter ~ DB9 USB Serial Adapter Prol
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Vantec USB 2.0 to SATA Serial ATA IDE Adapter
Bytecc BT~DB925 USB to Serial Cable Adapter ~ 5.83 ft Serial Data Transfer Cable
C2G Cables to Go C2G 26886 1.5 USB~A Male to DB9 Male Serial RS232 Adapter Cable
StarTech.com 3ft USB to RS232 DB9 Serial Adapter Cable ~ Up to 1 Mbps USB to Ser
Gearmo USB to RS~232 Serial Adapter w LED Indicators Windows 10 Support
Tripp Lite USB to Null Modem Serial FTDI Adapter Cable with COM Retent
Startech Icusb232d StarTech.com 1 Port Usb to Rs232 Db9 Serial Adapter with Deta
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DTECH 6 Feet USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Ch
StarTech.com 1 Port USB to Serial RS232 Adapter ~ Prolific PL~2303 ~ USB to DB9