R4i SDHC Revolution, but yellow/gold sticker and no website link (apparently? Untested.) Please rename R4 CHEAT FILE "usrcheat.dat" to "cheat.dat", and put in Folder "_SYSTEM_"! Or you also can use *.cht, rename it as same as *.nds, and put it in the same folder. just like aaa.nds and aaa.cht.