Dual Internal Upgrade Path

So is there an option to upgrade the internal 64GB on the Dual and keep things internal?
Hoping this is a PCI-E board & not something that is soldered directly to the board.

avoiding an external drive - DVR Cloud… but I’m sure that’s not what you want.

They come as they are.

Is it eMMC memory and does it come in a BGA package?

Sorry but the internal drive is not upgradable on the DUAL 64.

You can however always connect an external drive.

You can always find a youtube video of a crazy EE major who likes to wield a soldering gun.