Without pretending my "MicroSD" card is a hotrod,
this doesnt mean anything. You can take all this benchmark off the forum because it doesnt impact gameplay, and id like to say, well any card is great.
Any card is usually fine youll find in walmart, for example SanDisk or great value (lexx or super value pro) these brands are usually sony, memmorex, jpl or sandisk (you can use that same program to find who made it, the same with DVDs you buy in bulk use dvd identifier.)
However, what the problem is, is presistance of use.
That means, take out of flash cart, put into USB adapter and write more to the card and put back in NDS system.
This is wear and tear or writing/reading access on different media writing formats.
You insert your card into your computer, insert back into DS flash card, youll see sometimes you hit up the plastic mold around it.
Sometimes youll get static discharge, either way
The most common problem you are going to have is File system corruption. Which at times, is going to make it seem slow when you insert it into the computer and it takes a long time copying/etc. Run file system scan or right click drive / run scan.
So is the Kingston cards better? The japanese ones. They have a slight disk access speed , but the molding is so poorly done, its so thin against data. Basically I say go with whats cheaper, or use identifier software, youll find kingston makes tons of cards and sells them to outlets like walmart futureshop, target in bulk which they change the name. Yes that does mean sometimes, they arent as good as the orginal. But in SD cards SDHC, i havent found a good kingston. They are too sleek to be used over and over again.
In the SD (slot) Kingston hat dont support SDHC, they were faster because of better quality endings like a good set of DDR sticks top brand. But not anymore.
So save your scanners, and benchmarks, because the real load will be on your flashcard not the access times.