TyrannosaurHex

It's a 2015 model. I'm not in the US, and NVMes are (sort of) costly in my location. Because they are not manufactured locally, and the import duties on hardware inflate the price a lot.

If you stick to keeping it as a boot drive only, then it should be enough.

I have a Macbook Air which has a 128GB SSD, which has about 15 GB left on it. It also has an SD card reader slot. While I know it is possible to get a SD card to expand the storage on it, what I want to know are the SD cards reliable enough to be used on laptops. I actually haven't used SD cards for almost 2-3 years now(I have a OnePlus 3 64 GB), and the last one I bought was a SanDisk 64GB which stopped working within 30 days. I know the SD cards on phones these days end up seeing more read/writes than a personal computer, but considering my previous experience wanted to be sure if they are as reliable as SSD/HDD or less so. The other option ofcourse is to replace the laptop's SSD, which is going to be a costly affair whether the process works or not.