https://fujitsuscannerstore.com/cg01000-291001/
You will find these to be very expensive and not to everyones taste. If you have been using a mechanical keyboard with lots of force required to depress keys, this one is going to feel like its not there at all. It is also extremely quiet. You can be typing fairly aggressively and no one would be able to tell 1 cube over.
I feel like this keyboard is for those who have the patience to reform certain typing habits. My first few days with it were a dumpster fire because my hands were so used to slamming the shit out of Cherry MX Blue switches. Once I became adjusted to it, I felt like the keyboard on my late 2013 macbook pro is too stiff by contrast.
Overall, my ability to code for long duration without hurting has improved dramatically with this keyboard. 80g+ of force will wear you the fuck out if you are pushing those things thousands of times a day.