Mechanical Keyboard for Work

Hey Guys!

So I work in a busy office with a call center as well and I am looking for a mechanical keyboard for work. I am looking for something that's not too costly since it's just for work, but I need something that is going to be relatively quiet and then I want to get key dampeners as well. I also need something that looks unassuming. I am allowed to use my own peripherals, but I don't want anything too flashy just for professionalism's sake.

Thanks!