Arcade machines rely on reliable power supplies to ensure smooth operation and longevity. The most common types include:

1. Switching Power Supplies (SMPS) – Compact and efficient, these are widely used in modern arcade cabinets. They convert AC to DC with minimal heat generation and are ideal for powering multiple components.

2. Linear Power Supplies – Older arcade machines often use these, which provide stable voltage but are less efficient and generate more heat compared to switching power supplies.

3. ATX Power Supplies – Some arcade setups repurpose PC ATX power supplies due to their availability and compatibility with modern hardware.

4. Transformer-Based Power Supplies – Found in vintage arcade games, these use heavy transformers for voltage regulation but are bulky and less common today.

Choosing the right power supply depends on the machine’s age, components, and power requirements. Modern arcades typically favor switching power supplies for their efficiency and reliability.