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StarTech.com 2m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to Female Cable M/FBest Value StarTech 
StarTech.com DB9 RS232 Serial 9-Pin Null Modem Female to Male Cable, Black (SCNM9FM1MBK) High quality shielding prevents EMI interference
Serial RS232 DB9 Straight through Male to Male to Female to Female 9 Pin Cable Serial RS232 DB9 23 Straight through Female to Female 9 Pin 1.5m Cable. Connector 1: RS232. Connector 2: RS232. RS232 CaStarTech StarTech.com 2m DB9 RS232 Serial 9-Pin Null Modem Female to Male Cable, Black (SCNM9FM2MBK) High quality shielding prevents EMI interference
USB to 9-pin DB9 RS232 Serial Cable Adapter Converter Win10 Win8 Win7 32/64bit Supports RS232 Serial Interface(DB9 or DB25). - USB to Standard 9-pin / DB9 Serial Port. 1x USB to RS232 Cable.UGREEN 
UGREEN USB to RS232 DB9 9 Pin Male Serial Adapter Cable with PL2303 Chipset Compatible with Windows 11 10 8.1 8 7 XP Vis How it works: This USB to rs232 adapter connects to serial devices via a USB port, such as serial digital cameras equippStarTech 
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This product can't use as a USB to internet aStarTech StarTech.com 1m Straight Through DB9 RS232 Serial Extension Male to Female Cable, Balck (MXT1001MBK) M/FTihebeyan Tihebeyan USB2.0 Male A RJ45 Flat Console Cable for Routors, Easy Configuration for 10/8/7, Suitable for IT Professional [Transfer of effortless data] Easily transfers data between portable desks/computers and routers/switches such as //.USB TO RJ45 Serial RS232 Console Cable Express Net Cable for Cisco Routers AU Fully compatible with Serial RS232 protocol. An ideal and essential tool for network engineering. 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