From a performance perspective the Adata XPG SX950U does not stand out from the other modern SATA SSDs I have tested. Having said this I very much doubt that a user would perceive any difference in use between it and the fastest SATA SSD I have evaluated. In truth there is little or no meaningful differentiation in the performance of good SATA SSDs these days, and they are all pushing the boundaries of SATA bandwidth.
The SX950U does though have an effective implementation of an SLC Write Cache buffer, and it does recover very effectively following trim activity (as demonstrated in our intensely demanding Recovery Test) which are important positives.
If you can find an SX950U available at a good price I’m sure you will be a satisfied user. I am pleased to award the SX950U our ‘Excellent’ rating.