Adafruit ISO1540 Bidirectional I2C Isolator - STEMMA QT / Qwiic
Brand: Adafruit
Sometimes you'll find yourself with an I2C bus controller on one side, and an I2C bus device on the other and you gotta keep em (electrically) separated. Maybe because one is Earth-grounded, maybe because you've got some funky power monitoring setup, maybe you want to reduce noise.
$17.25 AUD, inc GST