If it says "3DS" on it I don't see why not.
Edit:
Not all DS flashcarts work on 3DS, but the wiki says that R4i cards meant for 3DS also work on 2DS:
http://wiki.gbatemp.net/wiki/Flashcart_Comparison_Chart
That one is most likely a clone. All "2013", "2014", "2015" editions are clones of other clones.