Adafruit USB Isolator - 100mA Isolated Low/Full Speed USBHave some USB logic analyzer, multimeter or oscilloscope and bumping up against the frustration of a shared earth ground? The Offspring wisely sang "Ya gotta keep'em isolated!" Power and signal isolation improves common mode voltage, enhances noise rejection, and permits two circuits to operate at different voltage levels. This handy little low cost USB Isolator provides protection against harmful noise, ground loops, surges, and spikes. It works with