Internal installation of additional eMMC

[James Good]

Just to be sure that I understand all of this, the Pinebook Pro comes standard with a maximum of 64GB eMMC which can be increased to 128GB. Like Besouro, I had wanted the added storage to be installed when my PBP was delivered. However, as I was taking everything out of the DHL packaging, there was a plastic case with a PINE64 sticker on it and a line that reads: "SKU: 128G EMMC." If what I have read here is correct (and I can think of no reason to think otherwise), I will need to open the case, find the 64GB chip and put the new 128GB chip in that place. Is this correct?
Thank you.
James Good