R4 3DS Card Help

First off, let me thank you for any help offered.

I just got a new Nintendo 3DS on Black Friday and I’ve spent awhile researching how to get a ‘soft mod’.

From what I understand I need an R4 3DS card. I would like to know what the R4 official website is, as there are many existing websites for the R4

I found the card on Amazon, but I am not sure if this is the complete package as I am a ‘noob’ at soft modding a DS
http://www.amazon.com/R4-R4i-sdhc-3d...eywords=r4+3ds


Once again, thank you for your help.