Hacking looking for a flashcart

[flash0veride]

looking for a flashcart that will work on 3ds and 2ds running the newest firmware so I can run nds back up so if you could sagest a card a a official website to get it from that would be good need 2 for 3ds and one for 2ds thanks in advance

 

[FTRBND]

http://www.nds-card.com/ProShow.asp?ProID=149
or
http://www.nds-card.com/ProShow.asp?ProID=490
your choice

 

[MSearles]

http://www.nds-card.com/ProShow.asp?ProID=149
or
http://www.nds-card.com/ProShow.asp?ProID=490
your choice

What is the difference between these two?

 

[FTRBND]

One is cheaper, the other one is the first r4i for 3ds