A compact, industrial-rated isolator provides a high-voltage isolation barrier for USB 2.0 or 1.1 connections from computers to USB devices. It is useful to protect against over-voltage conditions caused by electrical surges and transient voltage spikes. Isolation also helps to eliminate ground loop errors and will minimise conducted noise from static discharge, magnetic fields, and radio frequency interference. The company claims that the isolator offers noise immunity with low radiated emissions for reliable data transfer in sensitive applications and industrial-grade features offer control for advanced users. The unit is designed to meet UL/cUL and CE approval requirements. Typical applications involve process control devices, automation equipment, test and measurement systems, and medical instrumentation. The isolator is less than 1x2.5x2inches and includes a USB host cable. The isolator is inserted in-line with the USB connection and operates transparent to the devices with no software drivers required. It receives its power from USB and isolates that power to the connected device. A green power LED indicates that power is being received and will blink if the connected device is trying to draw more than 120mA. Default communication is USB full speed of 12Mbit/s but can be set for low speed of 1.5Mbit/s via an internal jumper. The reset button enables re-initialisation of a connected device without breaking the cable connection. High-retention USB A and USB B sockets increase connection integrity under shock and vibration. A 1 meter USB A-B cable is included for connection to the host computer.