[Ladyada] and [pt] had an old keyboard from NeXT, but since it used a custom protocol it wasn’t usable with modern hardware. So they built a custom device to convert the NeXT protocol to USB.
Customization options abound with Epomaker's newest full-sized keyboard, complete with incredible personalization options ...
The Keychron K3 Max is a compact 75% mechanical keyboard with 84 hot-swappable and low-profile switches. It can connect to host devices using Bluetooth, a 2.4Ghz wireless dongle or USB-C cable.