This adapter is the easiest way to add a serial port to your computer. Many PDAs, digital cameras, GPS units, barcode scanners and other equipment require a serial connection and many newer computers don't have serial ports. This fully plug and play adapter is perfect for people with the latest high performance USB only computers. Includes a 32" long USB extension Cable. Speed USB 2.0 to Serial RS-232 DB-9 Converter - Supports Windows 7, Vista, XP, 2000, 98, Linux and Mac/USB TO SERIAL ADAPTER with FTDI Chipset.