I installed it two months ago as the primary disk. Fresh install of Win 7 64 bit above therefore, it was properly managed. For two months, it was the dream, everything is launched without delay. The OS except that, like in the legends, was starting in 15 seconds. Now it is out of order, it takes a few seconds then forced reboot the system with the unrecognized SSD in the bios.
By doing some research, it is common for this brand as AC fails after a month or two ... very common.
Since I can not do without the speed boost, I bought on a another brand.
Note to self: do a search on the product name + failure before buying