With the board out, we're going straight for the RAM. Apple has trapped it in a heavy metal cage―almost as if they don't fully trust modular RAM to behave itself.
We pop out two SKhynix HMA851S6CJR6N 4 GB DDR4-2666 SDRAM modules, each with four 1 GB H5AN8G6NCJR DDR4 SDRAM ICs.
Toshiba TSB3225V81199TWNA1 flash storage (128 GB total)
Apple APL1027 339S00604 T2 coprocessor
Intel SR40E CM246 platform controller hub