Kensington PowerBolt 4.2A with PowerWhiz for Tablets (K39667AM)
Charge two tablets in your car simultaneously.  Charge two tablets from one auto power outlet-and do it fast-with the Kensington PowerBolt 4.2 Fast Charge for 2 tablets. The PowerBolt 4.2 features PowerWhiz technology that recognizes the device you´ve plugged in and automatically delivers the fastest safe power level. The result is charge times that are the fastest available. It also means that Smartphones can also safely and quickly be charged.