I bought this SSD as previously I had a 128GB SSD intel and necessarily I had recurring problems of space. With this I favored SSD storage space in raw performance, and I am absolutely not disappointed, my PC boots in under 10 seconds with Windows 8.1 in UEFI mode, and the system is really fast and stable. Only drawback, I never successful cloning my old windows 7 with TRANSCEND tool. At each attempt, the pc restart the first time, then the recurring problems of driver is directly led to the blue screen and an inability to reboot my pc on the new SSD (second restart about ...). I do not want included in the notation because what counts is that the equipment is in good moderately priced bill (35CT / GO for my part in flash offers amazon), I could have just as well used and insisted another clone tool, but this was an opportunity for me to move to Windows 8.1. In short I recommend a purchase, while DSS benefits without rear taste of lack of space at the end of three days, especially since I use a lot of software development quite heavy, and video games.