4 Port Professional RS-232 USB 2.0 to Serial Adapter
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
USB to RS232 DB9/DB25 Serial Adapter - Serial Cards & Adapters | StarTech.com Sweden
USB to RS232 Serial for Vista -- DataPro
3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
1 Meter USB to RS232 Serial Adapter DB9 Male w/Hex Nut, PROLIFIC Chipset
FTDI USB to Serial Adapter Cable w/ COM - Serial Cards & Adapters | StarTech.com
High-Speed USB-to-Serial Adapter for Windows 8 32/64-bit - U.S.Converters
Tripp Lite RS232 to USB Adapter Cable with COM Retention (USB-A to DB9 M/M), FTDI, 5 ft. - USB / serial cable - USB to - U209-005-COM - USB Cables - CDW.com
Tripp Lite 5ft USB to Serial Adapter Cable USB-A to DB9 RS-232 M/M 5' - serial adapter - USB - RS-232 - U209-000-R - USB Adapters - CDWG.com
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
USB to Null Modem (Cross Wired) RS232 Serial Adapter FTDI ft232r USB RS232 to DB9 Female Adapter Cable PC Control TV Cable
6ft USB to DB-9 RS232 Serial Converter with FTDI Chipset
USB to RS-232 DB9 1-Port Serial Interface Adapter - Sealevel
Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable
Amazon.com: CableCreation USB to RS232 Serial Adapter (FTDI Chip), 3.3 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, 2000, Linux and Mac OS X, macOS, 1 Meter/Black : Electronics
USB to serial RS232 adapter with two ports
Amazon.com: StarTech.com 1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable - RS232 Serial Converter (ICUSB232V2) : Electronics
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
USB to RS232 Converter - CAB-08580 - SparkFun Electronics
C2G 1.5ft USB to Serial Cable - USB to DB9 Serial RS232 Cable - M/M - 26886 - USB Adapters - CDW.com
USB to RS232 Converter - 6ft - CAB-11304 - SparkFun Electronics
USB Serial 12 Inch RS232 Serial Adapter FTDI Chip with LED
