The EX-1451IS is a USB 2.0 insulation adapter with 2.5-kV capacitive insulation between the upstream and downstream ports. It has a USB 2.0 Type A port and is backwards-compatible with USB 1.1 and USB 1.0-compatible devices. The EX-1451IS also offers the unique ability to work in bus power mode without an external power supply unit, which is handy for low-power USB devices. In addition, there is a DC socket for an external power supply if more power is required at the downstream port. https://elecena.pl/product/28205524/ex-1451is-usb-2-0-insulator-2-5-kv-insulation 2025-04-05 https://elecena.pl/product/28205524/ex-1451is-usb-2-0-insulator-2-5-kv-insulation 2026-10-01