R4i SDHC -- It is one of the most popular R4i Cards. It is created by www.r4i-sdhc.com for the Nintendo DSi /DSi XL but also backwards compatible with Nintendo DS and DS Lite .The R4i SDHC Card is a upgrade versions of R4 with multi-media features which can support SDHC and run most games and homebrews

With the Nintendo consloe's upgrade .Recently, the R4i SDHC develop to R4i SDHC V1.4.3 in place of the former R4i SDHC V1.4.2.

R4i Gold - created by www.r4ids.cn.The R4i Gold is one of the more popular of the R4i Card.We sell the R4i Gold labeled "3DS - R4i Gold 3DS is compatible with the latest Nintendo 3DS system Ver 3.0.0-6（J,E,U）, DSi /DSi XL V1.4.3 .The R4i Gold is usually packaged in a distinctive gold box .

After R4i Gold team split into R4ids.cn and R4ids.com(R4i Gold V2.0) at the early 2010, r4ids.cn has the official support from Yellow Wood Goblin, meaning R4i Gold cn can also run Wood Firmware.The R4i Gold was also the very first ds flash card that added support for DS homebrew games and applications for the new Nintendo 3DS system.

Compare with R4i SDHC(www.r4i-sdhc.com).R4i Gold is better at hardware upgrade.

R4i Gold Plus- created by www.r4ids.com.The upgrade version of R4i Gold V2.0 .The R4i Gold Plus Deluxe Edition with seperate card writer can be detached from a DS Host to upgrade card firmware ! The R4i Gold Plus support Nintendo 3DS V3.0.0-6 and DSi V1.4.3 !

R4i-Gold -- created by www.r4i-gold.com for Nintendo DSi. It support the lasted Nintendo DSi /DSi XL V1.4.3 perfectly.

The R4i-Gold and R4i Gold (r4ids.cn) are two different R4i Cards.The R4i-Gold card package from r4i-gold.com is different from the R4i Gold cards in outer appearance. Besides,the whole R4i-Gold card is yellow.

Compare with R4i Gold(r4ids.cn) and R4i-Gold , They have very similar functions. All R4i Gold are designed for Nintendo DS & DSi, They have same size as original R4 card, similar operation menu and kernel upgrade method.By tested, the R4i Gold 3DS firmware from R4ids.cn is of better Game ROM compatibility. It supports more DS games with fewer bugs. I believe that is why the R4i Gold from r4ids.cn is a little more expensive than the R4i-Gold cards.

R4iSDHC RTS -- Created by www.r4isdhc.com for Nintendo 3DS, DSi /DSi XL, DS Lite.The office website claim that R4iSDHC RTS is the latest development of R4 & M3 win-win cooperation .the best RTS (real time save) .99% RTS support! Support all NDS games!

The R4iSDHC RTS packaged in a distinctive a black box to easily differentiate it from the original red R4i SDHC (www.r4i-sdhc.com) and R4i RTS..The www.r4isdhc.com team commit themselves to the website maintenance and kernel updates.

R4iSDHC Dual-Core -- R4i SDHC Card made by r4isdhc.com .It is the latest development of R4 & Acekard win-win cooperation .Dual-Core ! It support firmware upgrade,also be able to upgrade with the Nintendo Host version ! The new R4i SDHC Dual-Core support Nintendo 3DS V3.0.0-6 and DSi XL /LL V1.4.3 U / E / J.