Cooler Master is introducing a new kind of bearing to the world of computer fans: their “Fourth Generation” bearing, made of POM -- polyoxymethylene. This bearing promises smooth running and long life at a low price. Cooler Master began their innovation by replacing the bearing of an old standby, the Sickle Flow fan, and calling it the Sickle Flow X. With this first of the POM bearings introduced, Cooler Master did not change anything else about the fan. Having taken this step, Cooler Master then produced the Jetflo, an entirely new fan. This fan comes with several innovations that Cooler Master advertises, and two very important features they say little about!