Using HD Tune Pro, the average Write speed was 23.7 MB/s. I ran the tests several times as I was surprised with the low result, and each time I got the same rough speed. I think this might be an issue with the test as the CrystalDiskMark testing was significantly better (as you will see below shortly).
Using CrystalDiskMark showed similar results for Read and significantly better results for Write.
USB 2.0 Tests
Using HD Tune Pro, the average Read speed was 33.4 MB/s.
Using HD Tune Pro, the average Read speed was 12.4 MB/s.