Best site to buy flashcarts for 3DS 8.0.0-18 in the US?

ANGWIN, Calif. - July 14, 2014 - PRLog -- Version 8.0.0-18J/E/U available to download via wireless Internet connection includes the following improvements: system stability and usability improvd: Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.
I can confirm that the r4i gold 3ds rts flashcart works fine after firmware update, coz its what i use, and according to some usrs, their supercard dstwo works fine as well. To all my knowledge, r4i gold 3ds is one of the best flashcarts on the market, the team behind r4i gold card is working hard and constantly providing the kernel updates, so users will be able to play more new games, and it has bypassed the previous 3ds firmware updates with no update patch needed, so you will be able to work it with the latest 8.0.0-18 3ds/3ds xl and all the lower version console.Many other flashcarts that not able to bypass the firmware update will force you to buy a new one.
http://www.thegamerdepot.com/buy-wood-r4i-gold-3ds-card-for-3ds-xl3dsdsids-p-150.html  that's where i got my wood r4i gold card, and the great site will pre-flash every individual cards to work with the latest 8.0.0-18 system out of the box.