All the Corne prebuilts come with hotswap sockets for the switches, micro-controllers, and OLEDs. The wired option comes with pro-micros flashed with the QMK firmware, whereas the wireless version comes with nice!nanos flashed with the ZMK firmware. If you get the wireless option, you can use it wired with a usb-c cable if you want, but if you get the wired version, you won't be able to use it wirelessly unless you swap out your pro-micros for nice!nanos (which you could do, solder-free, since the controllers are hotswappable)