I managed to install a 480GB SSD (447GB actually!) into my Xbox One S, with just one SATA adapter.
Prior to any mods, i backed up the data from my original HDD. In my case the old HDD only contained files in the System Update folder, the other folders where empty. After completing the backup, I...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi