I need to start using my Aranet 4, which case did you buy, I already dropped mine on the floor once and it felt lucky it didn't break.
It's actually a "CASEMATIX Portable Credit Card Reader Case Compatible with Square Contactless and Chip Reader, Case Only", which was the best possibility I could find. It would be nice if someone would make a dedicated case for the aranet4 as it is fairly sensitive. I'm fairly happy with this cheap case, but I'd like something that was better fit and designed for air intake, eg.