The QNAP 470 Pro has an Apacer 512 MB SLC eUSB DOM. Specs are typically 5v, 2x5 pin header, 2.54 mm pitch, horizontal (90D STD)
Apacer eUSB DOM data sheet and ICP Electronics LCD Manual are here:
https://github.com/elvisimprsntr/QnapFreeLCD
To remove the Apacer eUSB DOM, you will likely need to partially disassemble the NAS, apply a heat gun to the non-conductive white staking compound and pinch the plastic stand off tabs. A hair dryer might suffice, if you don't have a heat gun.
View attachment 50919
Might be able to remove the DOM without to much disassembly.
View attachment 50921
SLC eUSB DOMs are hard to come by and can be expensive. You will need a minimum of 16GB capacity.
www.innodisk.com
Another less expensive alternative is to connect an external USB3 SSD enclosure. I ran CORE and SCALE on USB3 Crucial X8's until I was able to source 16GB SLC eUSB DOMs here in the US. Not sure about availability in AUS
If you want to kick the tires on SCALE, you can temporality install SCALE on a USB flash drive. Not recommend for a permanent installation.