OS update (Mega EverDrive v2)
An excellent budget option for a genesis flashcart, suits all my uses and looks cool too.
It's the cheapest of the Mega Everdrives, but manages to get the job done! It has all the basic options for you to start using an everdrive and it worked out of the box with every SMS/MD/32X game I tried (granted that you have to look out for rom and region compatibility with your system). Pressing reset to save isn't even an issue when you get used to it.