I read all the comments before the purchase, ca lot helps, but I already do my idea ... for those who say it does not do this or that, I respond, "read the record" ... I have received this product and I honestly say for the price it is not bad at all ... me I'm lucky, no noise, I thought the fan was not working but no, c is impeccable ... carefree start with computer, it is on a map usb3, not slower than another and not heating at all .. not really good I say, in addition, with the weight of 2 hdd, it is heavier therefore much more stable, so I was not nhésiterais take it even if I had a new need,