Modular power supplies are power supplies that have their cables and connectors separated from the main unit. This allows the user to customize the power supply according to their needs. The benefits of modular power supplies are that they are smaller, quieter, easier to install and more efficient than non-modular power supplies. It is also easier to troubleshoot and maintain a modular power supply as each module can be replaced or upgraded independently. A modular power supply also allows for better cable management as users can plug in only the cables they need, reducing cable clutter and improving airflow inside their system.