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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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USB to Serial Adapter Cable w/ Isolation - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
RS232 Serial Port DB 9-Pin To USB Adapter Dongle Cable - Walmart.com
USB 2.0 RS-232 Serial Adapter 16 Inches w/ LED Indicators
USB TO RS232 RS485 USB Serial Communication module USB-232/485 Signal Converter | eBay
