Infapower39s triple usb car charger suitable for mobile phones mp3 players tablets pdas e readers sat nav39s cameras and power banks etc usb 20 three usb ports 4200ma 42a suitable for cars and lorries power on blue indicator light durable housing charges all usb devices input dc 12 24v output individual ports 5v dc 21a 2100ma current for fast charging perfect for charging three devices at the same time charge rate one or two devices at 2100ma each or three devices at 2100ma 1000ma and 1000