Whats so fu3"ing hard ????
The dongle and the box is same .The difference is if you have the dongle - for operations with com you need other box port to use and with the box you have the interface included . No it's not looks like z3x he simply used z3x to show that after he repair unknow baseband and imei to 0049 then you can use other box(like z3x or other that support imei write) to change to original or what ever imei.