Whats the best R4 style adaptor for DS

whats the best R4 style adaptor for the DS, i have an R4 SDHC with 2GB Micro SD, but its abit old and i want an upgrade, i only want to use it on a nintendo DS, not DSi or DSXL so i just want the nermal adaptorcan anyone sugest the best adaptors and models and where to actually buy them from please?cheers xxx

acecard2i u can get it from acecard .com

cyclods evolution.

rite, those 2 narrow it down, where do u buy them then, whats the models numbers etc.can they be bought from places like amazon as i have an account with them?