I bought 25 or 2.56 / GB (06-25-2012). This is the best value of the moment. The write transfer rate is an average of 6-7MB / s (FAT32 / NTFS not tested) for small files (music), which is really good for this price. Compared for example with my Sandisk Ultra 64GB sold as a key with a fast flow (sales data ". Up to 15MB / s read speed Up to 10 MB / sec write speed Applies to the first 20 MB of data transfer") has an average real rate of transfer in writing 7MB / s in FAT32 (file tests of various sizes) and 8.7MB / s NTFS (test on a single large 59GB file). At that price, I recommend this product.