GBxCart RW is definitely the easiest way to dump all GB/A cart in existence including basically all reproductions and fakes. Connect via USB, open the software, click a button to dump, click another to restore it. The sanni Cardreader can dump almost all carts from every console and handheld, but is a diy projects and thus not as easy to setup as the GBxCart RW, but worth consideration if you'd like to be able to dump more things.