The first USB-C keyboards were released in 2015. Some of the earliest models were released by Logitech, and Apple. Note: in case you are wondering who invented USB-C in general, see the full history here.
Logitech released the Logitech K580 Slim Multi-Device Wireless Keyboard, which was one of the first multi-device keyboards with a USB-C connector. The keyboard could be connected to multiple devices using a single cable, and it could switch between them with the press of a button.
Apple released the Magic Keyboard with Numeric Keypad, which was the first keyboard with a USB-C connector to be released by the company. The keyboard was designed for use with Mac computers, and it featured a slim design and backlit keys.
Since the release of these early models, many other companies have released their own USB-C keyboards. Today, there are a wide range of USB-C keyboards available, high-end gaming to budget models such as Macally’s UCSLIMKEY (see image below), which is only listed fro $29.99 on Amazon, compared to the $200 price tag of the magic keyboard. Ouch!
Even with these options, USB-C is still hard to come by, unless you have a MacBook or high-end gaming PC of sorts. Sure some PC laptops have USB-C but it still seems like a thing of luxury rather than the new standard. Personally, I don’t think USB-C will replace USB-A in our lifetime. Instead, I would expect wireless and Bluetooth modules to replace devices with ports, which is a more likely future – 100% wireless connectivity.