I am trying to configure a new Dell desktop workstation. It is very confusing. I presently have a class 40 1 tb ssd boot drive. The model 5810 is probably the one I will purchase. The choices for hard drives alone is mind boggling to me. My most intensive programs are CorelDraw and Photoshop. What is the difference between class 40 ssd and class 50 ssd drives? This is only the first of probably several questions so that I get what I actually need with some headroom but not buy options that are for more intensive use such as cad/cam. I occasionally will use Camtasia to create and alter videos. I am happy now with c": = 1 tb ssd and the same thing for D:. I have 2 four TB high end drives in raid 1 mainly for onboard backup. From the raid drive the important files go to thumbdrives or blueray or dvd.