Called "Access Keyboard 600" this might be your choice if you work in a data center, where cordless keyboards are forbidden (doesn't make much sense these days, but rules are rules :-(
UPDATE 04.nov. - actually I bought one right after posting here. Please take note, that the feeling when you type resembles a usual keyboard more than the quiet and soft MX3200. Personally I like the keys of my 3200 much more, but also got good feedback for the access keyboard 600.