Smart Voltage Memory: Stepless 5V-20V adjustment with automatic save function, unlike fixed 12V power adapters. Solves universal ac adapter compatibility issues Nine DC Connectors: Fits 5.5x2.1mm/5.5x2.5mm plugs for routers, LED strips, security cameras. Replaces dc 12v power cord needs Polarity Reversal Kit: Fix incompatible +/- ports instantly. Essential for class 2 power supply safety compliance Military Grade Safety: Triple protection (overload/short-circuit/overheat). Exceeds switching adapter 100-240v standards 24W Simultaneous Power: Runs 12V/2A CCTV camera + 9V/1A speaker concurrently. Max output outperforms 12v 2a power supply Unlock Full Device Compatibility This universal dc power adapter supports 5V-20V stepless adjustment, powering devices beyond standard 12 volt adapters: 12V Systems: CCTV security cameras, routers, LED strip lights Low Voltage Gear: 5V Arduino boards, 9V soldering stations Computing: 19V mini PCs, external DVD drives Technical Superiority vs 12V Adapters Voltage Range: 5V-20V (Fixed 12V adapters limited) Max Current: 2.4A@5V (Standard 12v 2a power supply max: 2A) Global Input: 100-240V 50/60Hz (Compatible worldwide) Three Step Setup Check device label (e.g., "DC 12V 1.5A") Set voltage: Plug in → Hold M button 3s → Select voltage → Wait 5s Connect with correct dc 12v plug tip and polarity cable