The laptop comes with an SSD of 256G.  We wanted to upgrade so I look at the specs via dell support. It shows an M.2 2280. I buy an M.2 2280 then I go to the Service Manual and it only shows hard drive replacement for a HDD. Hmm.. I chat with Dell and they tell me i have a 2.5 inch SSD. Ok that seems to make more sense. I call Dell to discuss purchasing (just to confirm that what i had already purchased would or would not work) and I am told that I need to get an M.2. I discuss this further with the sales agent who placed me on hold several times. Finally she comes back and also says now that it is a 2.5 inch SSD that i need to get. She then tells me the laptop doesn't support more than 256G and tries to sell me SSD that are larger so I inform her why would you sell me larger SSD if I am at the max already?!

Wow. I have never received such terrlible support from Dell - ever. The web site is inaccurate and support is clueless. Using overseas support, even worst on top of it all. I was so frustated I just needed to post this.