"don't buy . is take two weeks to copy at full capacity"0.5 starson by afz78
Pros: 2 hdd option and nice design
Cons: very low speed on write and read ( 1,3 mb) tested with wd 2tb 64mb and seagate 2tb. hdd on pc has 33-40 mb but in dns-320 has 1,3 mb max
Summary: i buy this for the 2 hdd option but is the worst product i have tested. on my old product i copy with 8-10 mb and this is ..... if you have hdd with data don't put in dns-320 because will be formated in ext3 ( linux) and all data will be lost.