There are 3 kinds of R4i Gold Card in the market currently:
R4i Gold 3DS card from r4ids.cn
R4i-Gold 3DS card from r4i-gold.eu
R4i Gold Pro card from R4i-Gold.com
* R4i Gold card from r4ids.cn support most Nintendo consoles, including: 3DS/3DSLL/3DSXL V7.1.0 (and all below versio), 2DS, DSi/DSiXL/DSiLL V1.4.5 (and all below version), DS and DS lite.
* R4i-Gold card from r4i-gold.eu support 3DS/3DSLL, DSi/DSiLL, DS, DS lite.
* R4i Gold Pro card from r4i-gold.com support Nintendo 3DS V7.1.0, DSi V1.4.5, DS and DS lite.