Blueferret21Their own shop let me select the silent yellows and I went as far as payment. I didn't pay as the price is too high and the software needs to be fixed and some of the keys needs changing. It needs a Home / End.
Scroll down just more than half way, there's a selection table of switch choices:
https://x-bows.com/products/x-bows-knight-plus-ergonomic-mechanical-keyboard-with-magnetic-number-pad?variant=31586054766654
They are saying posted with a week, which they couldn't if it was only a 'interest check' if people wanted the silent keys.