ULI-422C - USB 2.0 Isolator, 4 kV, High Retention Connectors, 2 Ports 4 kV isolation protects equipment and data. ESD protection – 8 kV Air. USB 2.0, full speed (12 Mbps). Panel mount, heavy-duty case (optional DIN rail adaptor clips). High Retention USB Connectors. Both a power supply and a USB cable are included.