“Is the M.2 user accessible, and is it pcie x4 or sata only? Since one m.2 slot is open I'd like to install 512gb SSD such as the Samsung 950 pro M.2. Can I install it without voiding the warranty? Is it user accessible? Also - does the M.2 slot support PCiE x4, or is it SATA only? Also, the M.2 slot size - is it 2280, big enough for typical M.2 SSD?”