Featuresr 5 usb charging portsr 5 usb charging ports with a total output of 40 watts enable you to charge up to five usb powered devices simultaneouslyr smart fast chargingr the five smart usb charging ports intelligently detect and deliver the optimal current to connected devices each usb output is up to 5v 24a total usb output is up to 5v 8ar safeguard your devicesr built in over current over voltage over heating over charging and short circuit protection safely guards devicesr rated