Modular crate electronics are a general type of electronics and support infrastructure commonly used for trigger electronics and data acquisition in elementary particle physics experiments. These types of electronics are common in such experiments because all the electronic pathways are made by discrete physical cables connecting together logic blocks on the fronts of modules. This allows circuits to be designed, built, tested, and deployed very quickly (in days or weeks) as an experiment is being put together. Then the modules can all be removed and used again when the experiment is done.