US-159 Converter USB to Serial RS232 - Isolated. The ultra small USB to serial adapter US-159 has 2kV of isolation, protecting from high voltage spikes and ground potential difference. 1 Port Isolated USB to RS232 Serial Adapter Baud rate up to 460 kBaud Reliable, stable, native com port solution because of own software drivers High retention USB connector with 50cm USB cable 9-pin male connector IP50 protection class Operating temperature -40 to + 80 °C Wall mounting possible