Thermaltake Riing Plus 14 RGB Premium Edition 140mm PC Case Fan - Triple Pack with Radiator Compatibility & Software Control - Ideal for Gaming PC Builds, Liquid Cooling Systems, and High-Performance Computer Cases

I purchased these for an RGB build. I'm more than satisfied with both their appearance and performance!The LEDs are bright and vibrant. The frosted rings do an excellent job at diffusing the light, and the design is such that the rings are visible from both sides and the outside edges of the fan. The rings let enough light through to slightly illuminate the fan blades, but this effect would have been much better if the fan blades were white. *This is more visible in pictures than in person.* The colors are decently accurate.The fans are of surprisingly excellent quality. At lower speeds they are inaudible even in a quiet room. They become audible at about 730 RPM (around 35%). They have good static pressure capabilities and do an excellent job pushing air through radiators, but are also more than capable of being used as "air flow" fans. The speed range is about 470-1330 RPM, but the individual fans seem to differ in range by around 100 RPM.The software is usable, but lacks much of the functionality that I would expect from a high-end fan solution. The UI is rather artistic (perhaps too much so), and doesn't offer scaling for larger screens. The individual LED color selection is simplistic, but lacks functionality because of it. The color wheels are decently accurate, and do offer a numeric R/G/B option for finer tuning. Brightness of individual LEDs can be controlled. I have some issues with saving and loading profiles - it seems that every time I load a profile something with the fans is incorrect, whether it be PWM mode selection or manual speed percentage. Even on computer startup, some of the fan settings revert to defaults. Hopefully this will be addressed in future updates. Lighting has always saved just fine.The biggest downside to these fans by far is the software. I've found nothing lacking with the hardware, build quality, or appearance, but the software greatly lacks a feeling of completion. Hopefully this will be reconciled with future software updates. Nearly cost this product a star, but I don't interact with the software often enough for it to be a major concern.Other notes:The fan cables are long - very long. It's difficult to fit them all in a full tower case, so you should keep this in mind for smaller form factor builds.Each fan includes mounting hardware - four long screws and four short screws. Some additional hardware was included for mounting the controller, but I left it unused.The controller saves the selected profile and returns to it upon startup. The controller is able to completely control the lighting without the software running, but it CANNOT control fan speeds based on system temp without the software running.Each fan has a Thermaltake sticker in the center. I wish they wouldn't do this on such expensive fans. I may remove mine in the future because a few are slightly off-centered and it does bother me to look at.