Attach between your USB cable and charger to physically block data transfer / syncing. Charge mobile devices without any pop-ups or risk of hacking / uploading viruses in cars, airports etc | Transparent casing, no-chip design and custom made USB connector with data pins visibly removed means you can be sure the blocker is secure. | PortaPow invented the first data blocker in the UK in 2013 and ours are now used by the governments of the USA, Canada, UK and New Zealand as well as many corporations around the world to secure their devices | This is our single pack USB-A to A model. Extra value twin pack also available, search for B0C3VN82YK | Now on our third gen design - the only data blocker to physically show you that its blocking data. See details below