USB Sync Cradle Battery Charger Dock for ASUS Google Nexus 7 Connects to your PC via a standard USB connection, which allows it to both charge and synchronise your device while it is in the stand. Has a built-in power protection circuit, which prevents any damage to your device from power surges or cuts. The dock is perfect as a replacement for the original charger, or as an additional charging solution at home or in the office.