Input and voltage: 100240 VAC, 50/60 Hz worldwide voltage compatibility, designed as a mains power supply for reliable operation across regions. Compatibility and model details: AC adapter for NordicTrack C3 SI Exercise Cycle, compatible with NTEX05808 and 831.218730 power cord. This is a replacement adapter, not the original. Safety and certifications: CE, FCC, and RoHS certified. Tested by the manufacturer to match or exceed OEM specifications. Includes protection features: OVP (Over Voltage Output Protection), OCP (Over Current Output Protection), and SCP (Short Circuit Output Protection). Product type and condition: This adapter is a replacement unit (not original). Please check the compatible models list below to confirm fit with your equipment. Key benefits: provides safe, reliable power to the NordicTrack C3 SI cycle, helps prevent damage from voltage or current fluctuations, and offers a ready replacement option to minimize downtime. Practical use scenarios: 1) Home gym: a faulty OEM adapter on the NordicTrack C3 SI to restore normal workouts without interruption. 2) Fitness studios or clubs: equip multiple NordicTrack units with a dependable replacement adapter to maintain consistent training sessions. 3) Regional travel or multiregion setups: universal input allows use with 100240 V outlets when moving equipment between countries or locations. Performance and reliability: designed to deliver stable power and protective safeguards to protect your NordicTrack cycle and maintain workout continuity.