[RetroTechie]

Imitation is the truest form of flattery...

For this product: what's up with that 4GB RAM in such a small / cheap SBC that's rather sparse in connectivity & storage options?

For deeply embedded uses, uC board like RPi Pico seems more appropiate. Or go wild & do similar things with GPU-included, 256/512MB boards like RPi Zero.

For a tiny desktop machine: sure, but if you need an add-on connector board to be useful, wouldn't a compute module + carrier board be more appropiate? Or a slightly bigger board with more connectors?

Maybe this is targeted at specific application(s) that need gobs of RAM but not much else?

Or is 4GB RAM that cheap these days that manufacturer included it anyway?

[magicalhippo]

To be fair, they have 1GB, 1.5GB and 2GB models, with prices to match. I picked up the 2GB model which should be plenty for what I want to use it for.

[rcarmo]

my guess, as spelled out after the BOM, is that this is actually a re-purposed Android TV box design. Taking out the EMMC and replacing it with TF/SD would be simple, and the RAM is handy in those situations.