Very nice keyboard where you can choose the lighting color from 1 to number 4 for color effect, and 5 is the option for a fixed lighting color (hold FN and press 5 to choose the color you want).
The lighting intensity has a separate button and it is quite convenient that it is right next to the lock button (Windows button, in case you are playing so you don't press it and exit the game) and together with all the other controls for headphone volume and Play/pause.
The key sound does not bother me and it is not as intense compared to some other keyboards I had in the past. Since I got it, I have had no problems.

The keyboard is very good, it is not as quiet as I would like but it is quiet enough. The keyboard is also waterproof, it has small holes between some keys for any liquid you might spill on the keyboard to drain out. The lighting can be adjusted either with shortcuts Fn + 1,2,3,4,5 but these are the only options, or with Corsair's application. The colors are vivid and there is an option to change the brightness and media keys for sound and starting/pausing video or music. At 40 euros, which is what I paid, it is a very good cheap keyboard and it does not tire you out in use or in terms of sound like mechanical ones do.

I mean it's very good at least for the MMO I play, it came to me with factory (it's not stable) I could return it but I'm not patient.

Purchased as a replacement for my son's previous gaming keyboard (I think it was Logitech and before that another Corsair), on which some keys stopped working and it couldn't be repaired (the repair cost is higher than buying a new one). It is membrane, with all the pros and cons that entails, much quieter than the previous one (which was mechanical) but with equally good RGB effects and a very good feel. I wouldn't call it a bargain—since there are cheaper options—but for a well-known brand product, it is indeed one of the cheapest. There is also a "short" version without a numeric keypad, for those who prefer it.

extreme vfm, probably the best for its price, also it's waterproof. the lighting can be adjusted either with shortcuts (with few options) or with the Corsair app with a variety of colors and effects.

There is nothing better at 40€! I was looking exactly for this keyboard all over Skroutz, with multimedia keys! Finally, my fingers don't hurt when I type.

I wish it was wireless but that's a small issue.

For €40 it is one of the best choices, as it is branded and has a color palette, even white. It is membrane so it is silent if you don't want the noise of a mechanical one.

The keyboard at €35 that it has now (and logically during every Black Friday, Christmas, etc.) is extremely worth it. It may be membrane, but the RGB and the software control along with some media keys make it very value for money; I don't think there is another well-known company that has such a keyboard for this price.
It also has holes at the bottom behind the space bar and arrow keys to let any liquid you spill escape in case it ever happens.

In short, if you can’t stand the sound of a mechanical keyboard anymore like I do and want some peace and quiet finally, get this.

Convenient and quality entry level gaming keyboard.
Clear key feel press for membrane.
Would benefit from a low arm rest like its sibling.
Keys only light up around them.
For its price (~40€) there is nothing comparable.