2-Port Professional RS-232 USB 2.0 to Serial Adapter 5ft.

Gearmo 2 Port Professional USB 2.0 to Serial Converter FT2232D Chip with Power LED is a great solution when a limited number of serial ports are

C2G TruLink 11137323 USB To Serial Cable 5 - Office Depot

Connect a RS232 serial device to the USB port on your computer 5-ft. cable length No external power is required Supports data transfer rates up to 230

TRIPP LITE USB to RS232 Serial Adapter Cable USB-A to DB25 DB9 M/M 5-Feet (U209-005-DB25)

Rocstor 5ft Usb To Null Modem Rs232 Db9 F/m (Y10C225-B1) – Network

Connects a device with an RS-232 (DB9) serial port to a USB port So you can connect your existing device to a USB hub or USB-equipped computer. Supports data transfer rates of more than 115 Kbps To ensure optimal performance. PC and Mac compatible This Insignia NS-PU99501 cable allows you to connect a device with an RS-232 (DB9) serial port to a USB hub or USB-equipped PC or Mac and supports data transfer rates of more than 115 Kbps for rapid performance.

Insignia - 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset - Black

Gearmo 2-Port Professional USB 2.0 to Serial Converter w/ RX/TX

OLLGEN 1.5M 5ft OBD2 OBDII 16 Pin Male to DB9 Serial RS232 Female

Ftdi USB 2.0 to Serial Adapter Cable - 6FT, Male Thumbscrews, Ftdi

StarTech.com ICUSB2322F USB to Serial Adapter - 2 Port - COM Port

USB 2.0 to RS232 Serial DB9 Converter - Black - Tera Grand

This USB 2.0 RS-232 Serial Adapter is the easiest way to add a serial port to your computer. Newer computers today are unequipped to support peripherals requiring a serial RS-232 connection because they lack serial ports; this affects PDA, digital camera, and GPS type equipment that may be used on your system. This adapter also allows you to add a serial port and monitor the status of your connections by using LED activity flashes.