TRP-C08S USB to RS-232C Converter
The Trycom TRP-C08S is one standard USB 2.0 to Serial Bridge that has one DB-9 RS232 male connectors and 4-pin screw terminal for RS-422/485. The DB-9-pin serial port is configured as a DTE (data terminal equipment) device which is same as all PC COM ports.
TRP-C08U 4-port USB to RS-232C Converter
The Trycom TRP-C08U allows you to simultaneously connect 4 RS-232C serial devices to system by using a USB interface. Each-channel can be independently configured for serial data format and baud-rate.