The compact and powerful 12V car adapter provides 3.4A total output (17W) and features dual USB ports to charge two devices simultaneously (2.4A + 1.0A). The car power fast USB charger has 4 times more power compared to a standard 2.5W car charger / 500 mAh USB output and charges most USB devices (including tablets) at maximum speed via the 2.4A port. It is also compatible with most USB cables, including Apple Lightning, Apple 30-pin, Micro USB, and Mini USB cables. The blue LED light indicates available charge. Accessoires: Micro USB Charge- and Sync-Cable.