# Rati(o)60 A 60% hot swap PCB for both tray mount and o-ring mount * Keyboard Maintainer: [4pplet](https://github.com/4pplet) * Hardware Supported: Rati(o)60 Rev A Make example for this keyboard (after setting up your build environment): make rationalist/ratio60_hotswap/rev_a:default Flashing example for this keyboard: make rationalist/ratio60_hotswap/rev_a:default:flash See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs). ## Bootloader Enter the bootloader in 3 ways: * **Bootmagic reset**: Hold down Escape and plug in the keyboard * **Physical reset button**: Press and hold the button on the back of the PCB or short the reset header for about 3 seconds then release the buttom/remove the short * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available