Add RS232, RS422 & RS485 support to your laptop or desktop computer via USB (Universal Serial Bus) The ICUSB2324852 2 Port USB (Universal Serial Bus) to RS232 RS422 RS485 Serial Adapter with COM Retention lets you connect every type of serial device to your USB (Universal Serial Bus)-enabled computer, whether it be for RS232, RS422, or RS485 communication. The adapter features a 9-pin (DB9) male & a 5-pin terminal block serial connector as well as dip-switch controls for easy port configuration with minimal software requirements. The adapter also supports using 2 ports simultaneously, including with mixed protocols; for example RS-232 on port 1, & RS-485 on port 2, or a number of other combinations. For a convenient, & clean installation in office or industrial settings, the RS232/RS422/RS485 USB (Universal Serial Bus) Adapter is wall-mountable & fully powered via the host USB (Universal Serial Bus) connection, providing power to the attached serial device without requiring an external power adapter. Backed by a Star Tech.com 2-year warranty & free lifetime technical support. * This single adapter is compatible with any serial device protocol (RS232, RS422, & RS485), & even allows mixing protocols for simultaneous communication over both ports * COM retention saves the assigned port settings for the device, so disconnecting/reconnecting is hassle-free * USB (Universal Serial Bus) Powered
- no power outlet required, & no cumbersome AC adapter to carry around