Not that are specifically the same as the 4000, there is the new microsoft ergo keyboard which is quieter but I don't like the key travel.

The 4000 isn't really that loud (I found it was louder with the front edge on as it creates a void space under the keyboard like a speaker) especially compared to the mechanical I was using before.

[1] https://www.microsoft.com/accessories/en-gb/products/keyboar...

I know people who've used those and love them, I personally didn't too much like a laptop keyboard the travel feels wrong.

Thank you - now if only the numblock would be attached :)