This USB 2-Port Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, this USB 2-Port Serial Adapter instantly adds two RS422/RS485 serial communication ports to your system with easy plug-and-play and hot-plug features.
Plugging the USB 2-Port Serial Adapter into the USB port, the adapter is automatically detected and installed. There is no IRQ & COM port conflicts, since the port doesn't require any additional IRQ, DMA or memory on the system. The RS-422/485 serial ports functions as native Windows COM ports, and it is compatible with Windows serial communication applications.
This USB 2-Port Serial Adapter provides instant connectivity to any RS-422 or RS-485 communication devices.
Specifications & Features:
Adds two high speed RS-422/RS-485 serial ports via a USB 1.1 or 2.0 connection
384 byte receive buffer.
128 byte transmit buffer for high speed data throughput.
Adapter works under Windows 98, 98SE, ME, 2000, XP, 2003, Linux 2.4 & Linux 2.6.9 and later, FreeBSD 6.0 & MAC OSX. (Drivers for Windows are included, the Linux 2.4 driver can be downloaded, and Linux 2.6.9 and later, FreeBSD 6.0 and MAC OSX directly support the adapter without drivers.