Dual port RS232 Serial to USB adapter for RS232 data conversion.
USB to RS232 Serial Converter -- DataPro
USB to RS-232 DB9 1-Port Serial Interface Adapter - Sealevel
Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) – Plugable Technologies
USB to Serial Converter Cable (DB-9M / USB Type-A Male), 3ft - Monoprice.com
C2G 1.5ft USB to DB9 Serial Cable - RS232 Adapter Cable - Serial adapter - USB - RS-232 - blue | Dell USA
Professional grade USB Serial Adapter - High-Speed
Tripp Lite 5ft USB to Serial Adapter Cable USB-A to DB25 RS-232 M/M 5' - serial adapter - USB - RS-232 - U209-005-DB25 - USB Adapters - CDW.com
USB-A to Serial Adapter Cable - RS232, DB9, 5-ft. | Eaton
USB 2.0 RS-232 Serial Adapter with LED Indicators
USB to Serial RS-232 adaptor
Pololu USB-to-Serial Adapter
USB to RS232 Serial for Vista -- DataPro
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
CBL-SERCBL-01 - USB to Serial Converter
TRENDnet USB to Serial Converter Cable, 26" (TU-S9)
Buy RS232 USB to RS232C Serial Port Adapter - CNC Specialty Store
3ft USB to Serial Adapter Cable, DB9
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
