Very good and budget fans with good airflow. However, I believe it could have a slightly brighter RGB!

stars because they are great fans but I have a drawback...
A bit noisy after 1300 RPM, I have 2 packs with a total of 6 fans.
Very good fans, beautiful colors, smart ring that crosses the center of the fan frame, but like a joke, Thermaltake provides a serious splitter for the fans, but a funny 4-pin cable from 1 male to 3 female, is this it? Is this the splitter that Thermaltake offers for fans of this level?
Which is not even tight and the cables are a mess...
I was happy that I had the Sharkoon Pure Steel and danced with joy... but every now and then a cable would come loose, so I had to use tape to keep them in place, and there I am, working and seeing only 4 out of the 6 fans working. Whoever doesn't want to struggle, if they have more than 3 fans, should immediately get a fan hub to solve their problems. BUT no matter what you do, you can't avoid the mess of cables for connecting the RGB.
So, 4 stars

Initially
1) As for the build quality, it is satisfactory, with a beautiful RGB ring where the light diffuses through it, without individual lights being visible!
2) Easy customization of lighting and fan speed if your motherboard has one of the technologies that the Fan supports.
3) Installation is easy with the help of the user manual!
4) Cable management is perhaps the only negative aspect, as each fan comes with two long cables, plus the final cable that connects to the MBO's RGB port.
Overall, however, it is a satisfactory product and based on the price I purchased it for, around €42, I highly recommend it!

Good fans, they have a bit more noise for my taste, but otherwise, they have very good airflow and lighting

Effective cooling, value for money, depending on the case and motherboard where the panels (LED, fan) are located, there is a difficulty in cable management (CoolerMaster MB600L, B450M), which can be overcome with patience.

Wonderful fans. Very good airflow. The system dropped 4 degrees. The LEDs are amazing. Wonderful quiet fans at a low price.

Nice rig that creates the light, not kitschy at all, calm operation, and everything is good with mystic light.
It is worth buying the set (3 pieces) and not a single one

Very good and high-quality fans. The LEDs work perfectly with the motherboard. They do a very good job. They are worth every last euro.

Day and night with the Corsair I was wearing. The temperature dropped 3 degrees and the sound on the PC changed. The lighting, I must emphasize, is not just bulbs, it is the entire Stefanos illuminated. Perfectly beautiful. However, BEWARE you must have a motherboard that supports LED RGB. For cable connection! Otherwise, the lighting does not turn on!