Decent enough card, Walmart's sale price is $11.88 currently and I don't know how long they'll keep it there so I thought I'd point people to it in case they need one and can get it before the sale ends. It's comparable to a Sandisk Ultra Plus card- write speed are a bit slower, read a bit faster. I'd estimate average write speed around 15 MB/s from observation, having loaded 2 of these with MP3s- can dip to around 11 MB at times, 18 seems to be max, it depends on what is being copied but 14-15 was generally the common speed. The write speeds on my 16GB Sandisk Ultra are about 1-2 MB/s faster on average.
Actual formatted capacity is 29.8 GB, BTW.
But for the current sale price, coupled with personally being burned twice in the past month buying flash memory on ebay from supposedly reliable sellers, well, you're probably not going to do a better price than this for the capacity.
Samsung 32GB EVO Class 10 microSD Card with Adapter - Walmart.com