Looking at the picture of the laptop with the bottom cover removed, it looks like there's enough room to fit a standard size 2280 m.2 SATA SSD such as the TEAMGROUP MS30 256GB ($21.79)
https://www.amazon.com/TEAMGROUP-256GB-Solid-State-Drive/dp/B07H23ZD94
which is both less expensive and has a larger capacity than any of the 120GB SATA 2242s. The only problem is that there is no screw hole to secure the SSD. Assuming there are no chips on the underside of the SSD, maybe one could get away with using some foam doublestick tape to keep it in place? What do you think?
I just tossed in a 256GB NVMe (https://www.amazon.com/gp/product/B07H23ZD94) and it is working great. As others have mentioned, a little double sided tape and it's good to go! Not bad for $22!
ok, just to confirm, this product works in the maestro? https://www.amazon.com/gp/product/B07H23ZD94?th=1
this one works well