I put the ssd m. 2 WD Green WDS480G2G0B 480gb, M. 2 2280, SATA III. I wasn’t really interested in speed. I was interested in the volume of the drive. I didn’t change the performance of the previous ssd. And I didn’t measure performance at the moment, as it was more important for me to have more capacity. Since I wanted to have more space to save important data and install an additional Android operating system. But I didn’t notice any visible signs of performance degradation.