Advise, DSTT was abandon by its company for the long time.
The products you would found are naked one without packaging, which we don't know if it's second hand or unpass QC product.
If you really want NDS flash card, why wouldn't add another $7 - $10 for Real Time Save (RTS)?
@Crystal the Glaceon recommend: http://www.nds-card.com/ProShow.asp?ProID=149
Support R4 Wood kernel with RTS + Cheat
@gnmmarechal recommend: http://www.nds-card.com/ProShow.asp?ProID=146
Support RTS + Cheat
About Wood R4
Thanks, I think im going to pick the 2nd with cheat