Chosen Solution
There is no iFixit official teardown for the 2017 15" MacBook Pro w/ Touch Bar 1TB, I need to know what the maker and model is of the Flash Storage in my Mac. can anyone answer this, my guess is its SanDisk since that who apple use the last 2 years but not sure. need accurate manufacture documented read/write speeds.
Your system uses soldered RAM & Flash! Neither are serviceable you need to replace the full logic board if either has a problem or you want to get more memory or storage. Review the 2016 model which is the exact same as yours only the CPU is different MacBook Pro 15" Touch Bar Teardown Jump to Step 8 and 9 for the nitty-gritty.
