Simultaneously charge your micro-USB enabled smartphone and tablet quickly and safely with the Griffin PowerBlock Dual Universal USB-A Wall Charger with USB-A to USB-C Cable. Designed to power your devices at optimum speed, it automatically selects the safest and fastest rate at which to charge the connected device. It's compact design never takes up unnecessary outlet space on your wall or power strip and easily fits in backpacks, purses or other bags when you are on the go.