So I bought this from eBay,
CY NVME M-Key 22x30mm to 22x80mm SSD Upgrade Adapter for ROG Flow X13
And it worked pretty good. Only thing is I can’t put the metal shield back on (I can, but then back button is too tight to push.) and the SSD touch the back plastic directly. So no heat sink. Been downloading lot of games and it seems the SSD is not getting too hot to touch (inside temp, not case temp) I recommend not too high end SSD because it will get too hot without heatsink. This is what I am using. Crucial P3 Plus 4TB PCle Gen4 3D NAND NVMe M.2 SSD, up to 5000MB/s Can’t put Amazon link so google it!
Considering 4TB it’s very easy decision for $179. 2TB 2230 would cost more than this. Sorry for bad English.
Ah yes the first post of a oled model in the wild with a 4tb ssd frankenstein mod. Do you have a picture of the back by any chance?
Still waiting for those guys who also modded their decks with 32gb of ram plus this 4tb 2280 nvme.