I tested it with HDTach on Quick and Long bench and received scores of approximately 15MB-16MB/s out of the box with FAT32 formatting. Drive does not realistically perform that well in real-world usage. I transferred from my OCZ Rally 4GB, the entire contents, which was about 3.7 GB of small (couple KB) to medium/large (300MB) files, and it took about 25-30 minutes. This drive does very well on small files (50-60MB or less) not so well on large ones. I was able to transfer about 450MB of drivers uncompressed in about 4 minutes.