# UM-80  UM-80 is a split keyboard in 75% layout with RGB, macro keys, OLED screen and encoder housed in PLA 3D printed cases sold by Merge. [Product page](https://mergedesign.store/products/um-80) * Keyboard Maintainer: [duoshock](https://github.com/duoshock) * Hardware Availability: [Merge Store](https://mergedesign.store/products/um-80) Make example for this keyboard (after setting up your build environment): make merge/um80:default 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 the Esc key on the left side or '7' key on the right side and plug in the keyboard. * **Physical reset button**: Briefly press the button on the back of the PCB. * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available.