# UD40_Ortho_Alt  The UD40_Ortho_Alt PCB is a modified layout for the UD040. It's similar to traditional ortho but the bottom row keys are larger than 1u. * Keyboard Maintainer: [Nasp](https://github.com/npspears) * Hardware Supported: UD40 * Hardware Availability: MyKeyboard.EU Make example for this keyboard (after setting up your build environment): make checkerboards/ud40_ortho_alt:default Enter the bootloader by shorting GND and RESET just above the Atmega MCU. 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).