Where to get reliable r4i ds flashcards ?

[Shadowtracker]

Recently, i've just got a new 3ds xl. I have a sky3ds+ card already, so no need worry about 3ds games playing. But I also want to get a flashcart for nds roms. The r4i ds flashcart seems to be good choice as their price are cheap. After some searching and comparison, I got some recommendations with this seller ----
I looked around, and there were many choices: r4i gold 3ds, r4i sdhc rts card, r4i gold pro, r4i sdhc dual core and so on.
So which one will be better choice ? any suggestions ?

[Jamess Jone]

My card is this one, R4I SDHC 3DS 2016, released from r4i-sdhc.com

[Zorlon]

I would look for a good card, that is none of the R4's

Problem with R4 kits is there are too many fakes and even a none fake you are still required to patch a lot of game before they are playable due to protection

there are a number of different R4 official sites (None of the current R4's are original though the company or group died off years before the 3DS was even released)

http://www.r4ids.cn/ the better of the R4 range and has been for some years
http://r4i-sdhc.com/ this one has been up and down over the years for firmware compat and has been blocked many times for long periods of time and is still fixing game issues (though it is still going)

official sites will have stores listed, though that is not to say the sites listed are reliable either or even still stock there product

Supercard DSTWO+ brags to play both DS and 3DS though, but that is a card I do not have myself
Supercard DSTWO the original card does not require game patches and just works (as a bonus it does have better emulation support but that is not the reason you go for a kit like this)

Saying all this but if the Sky3DS kit lets you downgrade the 3DS firmware and use Virtual nand/firmware version then just about any kit will work on it even those previously blocked

Best to check official sites though not sales sites to see what has been updated with a kit and if it works on your current 3DS firmware