awesome harddiskgot 2tb for rs4300 was waiting for price slash the harddisk is goodcopy speed in general port is around 25mbps and in usb 30 port is 6080mbpseverything is goodjust build quality is a bit lowbut if you handle it with care better by a case of around 200rsit will give you a long rundoesnt work with windows 7 in my caseand works like charm in windows 10you get around 181 gb for usedo remember to format your harddisk before fi