This samsung charger allows you to sync and charge your tablet via a pc or laptop. this essential accessory is a great spare or replacement charger, and allows you to add or remove files from your tablet and back them up to your main computer. it connects to your galaxy tab's 30-pin charging port, and to a wall socket. compactible with tab2 10.1, n8000, p1000, tab2 7.0, tab 8.9, tab 7.7, tab 7.0 plus