CableCreation USB to Serial Adapter, USB to RS232 Converter, USB to DB9, RS232 Converter 9-Pin FTDI Chipset for Windows , Mac OS and Linux - Walmart.com
Sewell InstaCOM USB to Serial Adapter — Sewell Direct
Amazon.com: CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black : Electronics
TRENDnet TU-S9 - serial adapter - USB - RS-232 - TU-S9 - USB Adapters - CDW.com
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Thunderlinx™ USB to Serial adapter - U.S. Converters LLC
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USB to RS-232 DB9 Serial Adapter/Converter Systembase Multi-1/USB RS232 | eBay
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Amazon.com: Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146) : Electronics
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RS232 DB9 Female to USB 2.0 A Female Serial Cable Adapter Converter 8" Inch 25cm | eBay
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
1M USB to RS-232 Converter - UC232A1, ATEN Converters | ATEN U.S.A.
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Mettler Toledo RS232 to USB Converter Cable for XPR Microbalances and Ultra-Microbalances | Fisher Scientific
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USB/Serial Converter [FT232RL] : ID 18 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
