Hard disk installed easily without any worry. The hard disk is recognized on my PC windows 7 and 8 and my Synology nas. No need for formatting. It is a pity that there is not in the package of anti-slip stickers to stick on the case because it is very smooth. There are 2 USB ports, but one is enough. The red color tends more towards orange .. Not great but that's a detail. Another detail, the LED lights up very well !!! Possibility of landing airplanes full night !!!