Please excuse me if this has been asked before or if this is the wrong section to ask this, but I'm pretty sure this is the right place. Long story short, my 128GB micro SD card is nearly filled in my 3DS (talking maybe 1 to 2 GBs of free space). As such it is getting time for me to consider making an upgrade and copying over what I already have to the new bigger storage size card, especially if some sort of home-brew video player is to be released anytime soon now that we have access to the developer tools and can make single moflex .cia videos. Buying SD and micro SD cards is something you can very easily get cheated on. i'll never buy one on eBay again after years ago being fooled into thinking I had a much larger size card than it really was. So I know I gotta stick with somewhere reliable like Best Buy or whatever. What I'm curious to is if anyone knows where I can find the most inexpensive yet reliable 200GB or more micro SD card at retailers in America? Best I've found is this 200GB card from Best Buy at $80, would like to find one less expensive than that if possible. http://www.bestbuy.com/site/sandisk-ultra-200gb-microsdxc-class-10-uhs-i-memory-card-black/6330207.p?id=1219661891262&skuId=6330207 I'd love to believe that a card like this is real: https://usadiscountwarehouse.com/sh...usb-adapter/?gclid=CIbj3bSi8c0CFQyEaQodhtUBjg But realistically, I think its pretty obvious there is no way that's actually a 512GB micro sd card especially at that price, unless anyone can confirm they've bought such a large card from a site like that and it turned out to be true that there actually was that much space on the card.