Searching for new silent keybord with lightning



i'm working since years from my netbook.

It's great and it's really silent, but i connected and used a normal keyboard in the last days and there's a big difference... that's why i don#t want to miss it, BUT it's so loud:(

Now i'm searching for a new keyboard which is really silent and i would love to have backlit keys.

Some years ago i had a ligitech g 15, but the keys weren't IMO silent, so i'm searching for alternatives.

anybody can recommend a keyboard?