That depends on if the store you buy it from updates their carts before sending them out. Some do, some don't. They usually state if they're updated or not on the product page.

 

http://www.dsflashcart.com/r4i-gold-3ds-wood-r4i-3ds-flashcard-for-ds-dsi-3ds-p-248.html?zenid=rnigcuo8h32nu67m2pu2s56ou1 I bought mine from them and got it in 3days they preupdate the card and are based in the us