The product works as long as you do not try to replace the built-in HDD. Since the case has no screws, I had to take a screwdriver between the two plastic parts and separate them by rotating and using brute force. I succeeded. Unfortunately, after the case was only scrap. The hard disk has, however, taken no harm and has since worked reliably in my computer. I can only everyone who sometimes want to use a hard disk of a housing elsewhere, advise against buying this product. For me it is clear, I never buy back external hard drives, but only hard drive and case individually. For this, I recommend the ICY Box. Although the costs a little more, but is very simple to use and you can use for years.