The redux lineup is a lot more varied than the industrialPPC’s. This lineup includes fans in 80, 92, 120, and 140mm sizes. These aren’t designed for industrial use so there aren’t any special motors, fan blade materials, or dust protection. That doesn’t mean they aren’t great fans. These are the same fans that people love in the standard Noctua lineups, the only difference is these are all light and dark grey. Noctua skipped out on some of the accessories that you will normally see with their fans and none of the redux fans even have rubber mounting pads. All of those things translate to cheaper fans. I for one welcome this, picking up a whole set of Noctua fans for your PC really add up. The redux fans are actually priced lower than a lot of the higher end fans. Other than the loss of a few accessories you are still getting a top of the line fan. On top of that I think the grey on grey look is amazing. Seriously the only downside I have is they don’t currently make a replacement fan for any of my NH-L9i’s in the redux color scheme. You can still use a NF-B9 redux-1600 PWM but the additional thickness just doesn’t work with some ITX builds.
NF-B9 redux 1600 PWM
NF-R8 redux 1800 PWM
NF-S12B redux 1200 PWM
NF-P14s redux 1500 PWM and NF-P14r redux 1500 PWM (s for square r for round)