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I have an XPS 15 9570 (base model with the 2.5” hard drive and no m2 SSD). Now I want to upgrade it with an nvme SSD (970 Evo). I know that the systems that shipped with nvme’s have a cooling pad between the SSD and the bottom case. What thickness is this pad, and where can I get something like it? Any clues and or leads greatly appreciated!

On eBay they sell the m.2 heatsink and cooling pad combo with the silicone rings to hold it together. Alternatively you can use the green / white thermal pads that are mushy which is compatible with a variety of laptops.