› IO Crest SY-HUB15054 USB 2.0 to 4 Port Serial RS422/485 Adapter

With the SY-HUB15054 USB 2.0 to 4 port serial adapter, you are able to connect a single USB port to control and monitor four RS232 serial ports. This can then be used on applications such as POS printer terminal, networking systems, PLC instrumentation...