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USB to RS232 - USB232 - Fixed Length USB Cable – Grid Connect
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Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
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Black Box IC199A-R4 Converter Cable | Free Shipping
Electronic Master USB to RS232 Cable EM620503 - The Home Depot
StarTech.com 1 Port USB to RS232 DB9 Serial Adapter Cable - M/M - ICUSB232V2 - Serial Cables - CDW.com
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USB to RS-232 DB9 Serial Adapter/Converter Systembase Multi-1/USB RS232 | eBay
Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
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USB to Serial RS-232 DB9 FTDI Mini Adapter with Extension Cable