The first thing to do with a brand new SSD is to update the firmware it seems. SanDisk provides a toolkit for detecting, downloading and updating the latest firmware automatically.
Unfortunately, the toolkit only works in Windows. Non-Windows users will have to do update manually. Download links for the firmware updater ISO can be obtained from the SanDisk forums.
Be careful not to download the wrong image file. When in doubt, check the model on the SSD itself.