A solder-in replacement reset / pause button used across multiple Sega consoles and accessories, as well as the Super Nintendo Mouse. This switch offers a firm, clicky feel and significantly improved durability compared to the original soft rubber-style buttons. Compatible with Sega Master System* Compatible with Power Base Converter / Mega Adapter Compatible with Sega Genesis 1 and Genesis 2 (Mega Drive 1 and 2) Compatible with Sega Saturn Compatible with Super Nintendo Mouse Clicky tactile feel instead of the original squishy button design Rated 12V DC, 50mA SPST OFF/ON contact type Rated for 1,000,000+ cycles minimum Requires soldering for installation *Not compatible with early Sega Master System units that use open leaf switches. A durable, long-lasting replacement ideal for repairs and restorations where reliability matters more than original feel.