JMC FANS: Because Panasonic does not make a 120x25 fan and there is a need for this size in a low-noise version in our cases, I sought out a good quality, generally-available low-noise fan. Since dealing with the other fan manufacturers that do offer this size through the traditional electronics distribution network is often an exercise in futility, I tracked down JMC in my search for a 120x25 low-noise fans.
After testing them on site, I have found them a very good fan for the low-noise use. They are a ball-bearing fan and therefore have a characteristic to the overall sound of the fan that is different from the Panaflos, but it is not an obtrusive noise. Further, they are a 50,000 MTBF unit, which is high and thus indicating good to excellent quality.
After an initial shipment, there has been trouble restocking them, but I am optimistic that they will finally become readily available shortly.