Satechi USB Surge Protector provides protection from electrical spikes and surges that can be devastating to both expensive electronic equipment and valuable data. It includes a single power outlet and additional USB charging port that delivers enough power to charge most devices and various other tablets or smartphones. It works with Kindle Fire, iPhone 6, 5S, 5C, 5, 4S, Samsung Galaxy S5, S4, S3, S2, and various other tablets or smartphones.