I bought this SSD months ago CA 4 and was initially very satisfied. Read speed of 140 MB / s and write speed of 95 MB / s (measured with AS SSD benchmark 1.6.4237 on a Lenovo L520) were very satisfactory. But after about 3 weeks, the rate declined rapidly. Thereupon I made a firmware update and was again everything ok. But one month later the same thing, so again a firmware update.
Unfortunately, I realized that today (after 4 months) the speeds are very bad. The SSD reads still with about 120 MB / s writes but only with about 45 MB / s and is about 50 MB / s slower than my built-in HDD of WD.
I am now waiting for a new firmware and hopefully the performance will be improved.
Greeting