Mach Xtreme made a splash with the FX series and their Sandforce SSDs - both of which we reviewed. The GX series of drives is intended to take on the mainstream market and it advertises great read and write performance. Advertised read speed can be attained, but only with the help of the Turbo tool, the performance under normal conditions is much more in line with what you can expect to see from a drive of this price range. The write speeds can only be attained under ideal conditions, but in real life the unit is slower. Then in USB 2.0 things look similar, with good read performance but slow write benchmarks. At a price point of only 30 Euros for a 16 GB USB 3.0 stick you cannot expect to find a super speedy stick, and while the Mach Xtreme GX stick does manage to deliver the advertised speeds in very specific usage scenarios, overall performance is simply not on par with other drives in the same price range.