Ruggedized USB isolators are designed to isolate and protect connected equipment from surges, spikes and electrostatic discharges carried on USB cable. The new one-port Ulinx UHR401 and two-port Ulinx UHR402 USB isolators also protect themselves by virtue of their tough construction. Ulinx hubs are built to withstand industrial networking hazards such as shock, drop, vibration, electromagnetic interference and temperature extremes. They are equipped with high retention ports that hold USB cables firmly in place to eliminate data loss, and in extreme cases, the risk for fire caused by loose cables and arcing.