Easily add 4 serial ports to your computer. Just plug this adapter in, and 4 serial ports will map in automatically on your computer through plug-and-play detection.

Once you plug the adapter in, 4 serial ports will be automatically detected and installed. The ports will map in as standard RS-232 serial ports and function just like native serial ports. No additional IRQs or memory is required on the system for the serial ports. Each port can be individually configured. All 4 ports can be used at the same time, or at different times.

Specifications & Features:

• Adds 4 RS-232 serial ports via a USB 1.1 or 2.0 connection
• Ports can be set at speeds of 300 bps to 230,400 bps per serial port
• Provides a 384 byte receive FIFO on each serial port.
• Provides a 128 byte transmit FIFO on each serial port for high speed data throughput.
• Doesn't require any IRQ, DMA or I/O port.
• RS-232 data signals: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI.
• Serial Connectors: DB-9 male connectors
• Uses an Prolific brand chipset.
• Virtual COM port drivers provided for Windows 98, 98SE, ME, 2000, 2003, XP, Vista & 7. Not recommended for MAC or Linux as the serial ports map in in a random order each time the adapter is plugged in.

  Windows 7 drivers are not on the included CD, but can be downloaded from here: http://www.prolific.com.tw/eng/downloads.asp?ID=31

Package Contents:

• USB to 4-port RS232 serial adapter
• 6' USB cable
• CD-ROM disc with drivers