- Power from the USB bus (bus power)
- Supports TX and RX activity LED indicators
The EX-1333VIS USB 2.0 to Serial RS-232/422/485 in a metal case, provides two high performance 16C550-type UART compatible RS-232/422/485 serial ports with surge protection & optical isolation. It is designed for PC or notebooks to provide instant COM port expansion in a robust metal case through the USB 2.0 bus. With the easy installation you don't need to open the computer system and install the EX-1333VIS when the system run. The EX-1333VIS has LED displays for operation functions and data communication.