This laptop is rather slow (no big surprise really but I thought it would be better than it is). The Samsung 850 EVO should work in it and have had great success with that SSD in my Desktop PC. The biggest hitch with the Acer is that there aren't any dedicated access panels on the underside to even replace the *battery* if needed, never mind RAM, Drive, Video, etc. - so I would need to remove the entire bottom to get at its innards. I'm also having trouble finding info on this model to see if it even has an additional HDD bay; it comes with a 1,000 GB HDD, so what I would like to do is make the SSD the OS drive and use the HDD for storage. Any help available would be appreciated, since nobody wants to spend money on a dead-end upgrade job.