4 port RS232 Embedded USB 2.0 serial adapter w/DB9M ports
You can now broaden the range of external peripherals used on your computer at higher speed rates than the USB 1.1 series, with the introduction of the High Speed USB 2.0 Serial Adapters. The USB 2.0 has more bandwidth that allows higher data rates on the serial ports for more efficiency.
RoHS Compliant and USB 2.0 Compatible
4 independent ports
USB to RS232
Device enumerates itself as standard port(s)
Full modem control and hardware and software flow control (RS232)
Full-duplex or half-duplex modes (RS232)
Bus powered, no external power required
Windows 2000/XP/Vista support available
Linux support coming soon
Surge suppression standard
RoHS compliant
5 year warranty