USB Multiport Interface Cable For Increased Communication Ports
The USB Multiport Interface Cable increases available communication ports through a USB interface.
Single USB to 4 Port RS-232 Conversion
Adds four extra ports of serial communication
USB 1.1 compliant
Plug-n-Play, hot swappable
No external power required
The USB Hub on this unit is constructed of a ruggedized plastic (or aluminum, if requested).