This version (Logitech part number 920-009407) only works with Bluetooth or the Unifying receiver (also included). The "MX Keys for Business" version (with CH layout, Logitech part number 920-010246), on the other hand, only works with Bluetooth or the Bolt receiver. In any case, it is helpful to check the Logitech part number under "Technical Data":
https://www.logitech.com/de-ch...https://www.logitech.com/de-ch...
