Small size and simple retrofit Size: 48 mm x 43 mm (1.89 in x 1.70 in). Compact and unobtrusive for DreamCast installations. Dropin replacement and easy to install Dropin, easy to use replacement for the original power supply. No modifications to the console are . Uses the original DreamCast power button for familiar operation. Power source and connector Runs from an external 12 V 3 A power supply. Connector size: DC 5.5 x 2.1 mm (not included). Compatibility and reliability Direct replacement for the original DreamCast power supply, designed to work with the DreamCast hardware and power button as it ships. Use scenarios Scenario 1: Replacing a worn or failing internal power supply in a standard DreamCast console to restore normal function without altering the console. Scenario 2: Installing in an arcade cabinet or DreamCastbased kiosk that benefits from an external power solution, keeping the internal cabinet wiring simple. Scenario 3: DIY DreamCast projects or retro gaming builds that require a compact external 12 V supply with a 5.5 x 2.1 mm connector (power supply not included).