Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB

The Adafruit USB Isolator provides galvanic isolation between your computer's USB port and connected devices, protecting against harmful noise, ground loops, surges, and voltage spikes. Based on Analog Devices' USB isolator technology, it supports both Low Speed (1.5 Mbps) and Full Speed (12 Mbps) USB connections.

With its own isolated 5V power supply delivering up to 100 mA, this isolator is perfect for use with USB test instruments, oscilloscopes, and other measurement devices where separating earth ground from your circuit is essential for accurate readings or safety.

Key Features

• Galvanic USB Isolation – Protects against noise, ground loops, surges, and spikes
• Low & Full Speed USB – Supports 1.5 Mbps (Low Speed) and 12 Mbps (Full Speed) devices
• Isolated 5V Power – Built-in isolated power supply provides up to 100 mA to the downstream device
• Inline Design – USB Type-A male input, USB Type-A female output — simply plug in between your computer and device
• Compact – 52 × 30 × 10 mm (2.0" × 1.2" × 0.4")

Ideal For

• USB test and measurement equipment (oscilloscopes, logic analysers)
• High-voltage circuit debugging with floating ground requirements
• Protecting laptops and computers from connected hardware
• Eliminating ground loops in audio or data acquisition setups

Package Contents

• 1× Adafruit USB Isolator