yes it takes a micro 64 gig card, I have the sandisk version in mine as I type this for you all!
I personally have not read of any 64gig cards it does not take, but again I but the class 10 sandisk cards so..
This device is very quick, it has the 2 gig ram you, all need and 16 gig is a minimum storage, I have the 32 gig version. You will not need 32 gig unless you play lots of big games. I do like to have it anyway tho, just checked now and I have 12 gig free, now this is internal not your sd card!
if you dont mind rooting the device as I did mine then you can use an app called "gl to sd" in the play store to move big games to your sd card, I have ised it on my phone and it works with most big games.
The case this comes with is very nice and thin, the down side to it is its thin and not that protected when dropped so if you tend to drop your gadgets get some other case that has protection, it will add bulk but at least its protected!
I have a usb adapter for it that I purchased off amazon that reads and writes fat 32 and ntfs, but only ntfs with root and this app "USB OTG HELPER".
Now there are a bunch of file managers that allow you to tranfer files thu wifi so look into that instead of direct connect, much easier.
now I also have the 8" and 10.1"note by samsung, bothe are great but prefer the larger.
Yes they have a new 10.1 2014 edition but get this one now then next year by that one at this same price and you have 2 for just about the same as the new one now! or wait longer and get a future one, I am not saying this is a bad purchase at all, just saying for those who have to have the latest and greatest and cant swing the extra money.
speakers on this is perfect in the front, this is one major design this older version has over the new 2014 edition, I still cant believe samsung moved the speakers on the new 2014 edition, I dont even want one just cause of that!
I purchased a dock for some older samsung 7" device that works great for hdmi and to supply power to the tab at once, off ebay for something like $10, and I also have the samsung allshare cast device and both methods work great! on getting everything you do on your device to the screen!
Oh one last thing for now, buy printer share in the app store, between that and google print you cant print anywhere (directly to most newer printers).