Dual connection keyboards

Combined

— keyboards that support multiple connection methods at once. In most cases, these are wireless models (see the relevant paragraph) that can work both via radio and Bluetooth (see "Connection interface") — for example, use the first method with a desktop PC, the second — with a laptop. However, in fact, such versatility is rarely required: usually the keyboard is used with one computer, without reconnecting. Therefore, this variant of distribution did not receive.

Even rarer — for similar reasons — there are models that also support wired connections, in addition to Bluetooth and radio.