Startech com dual port usb car charger 17w 3 4a black startech com usb2pcarbk p the startech com usb2pcarbk dual port usb car charger features 2 x usb 2 0 ports and works with any standard car aux power outlet it enables you to charge two mobile devices simultaneously while you commute for work or play p p with a 1a port for charging your smartphone or iphone and a 2 4a port for charging your ipad or other tablet you can always be sure you have the correct charge available for all