R4i Gold 3ds or R4i Gold Pro

Hi, i'm looking for a R4 card to play ace attorney: Apollo Justice, and 999. I found the site which sponsors GBA (nds-card.com) and I a lot of GBAtempers say that r4i gold is the best one. Well, I looked for it and I find two different ones; gold 3ds and gold pro 2017. I'm more inclined to the cheaper one but I need to know is there a massive difference between these two.

Here's the link if it helps:
Gold 3ds: http://www.nds-card.com/ProShow.asp?ProID=149
Gold pro:...

R4i Gold 3ds or R4i Gold Pro