A:AnswerNo, it only works up to a Galaxy S5. You will need to purchase a special hub that is available only on the Samsung website. Look at the specs and make sure it's compatible with your new at 7.
A:AnswerYou don't need to use a different cable. You do however need to make sure that your charger is a 2 Amp rather than a 1 amp. This will make sure that your charging stays ahead of your playback powe use. A lot of micro USB to USB Chargers are only one amp, so make sure you are using a 2 Amp charger. Good luck!
A:AnswerThe adapter has 2 ports, one is for the hdmi cord and the other is a USB port for your charger cord. The hdmi cord needs a power source, hence the port for your charger. Therefore, it does indeed keep your phone charged.
A:Answerso long as the phone charges via micro usb (which unless its an iphone chances are it will) it will be compatible. Just make sure you dont make the same mistake I do and buy an apple one first.