My CF card have become obsolete with the change of my camera I was looking for a compact reader for reuse. This drive allows me to re-employ them as a USB key. From a product point of view I'm quite surprised its speed. HD Tune gives me READING of 24 MB / s with CF Sandisk Extreme III 30 MB / s. This is at least 2x better than the player I was before. Not tested in writing. OK with other reviews: it is a Chinese product of poor quality and care should be taken not to bend the pins in the introduction. It did not cap to put on USB. But considering the price, you can not have the performance and finish. Fast delivery and free of charge by My Memory. I recommend for the use described, but also for normal use transfer pictures since in the latter case we will focus almost exclusively on performance in reading, not writing.