... connectors *AC110-240v DC12,15v/4.6a 16,18,19,20v/3.5a 24v/2.9a *For most brand laptops *1year warranty ... 7mm For HP/Compaq:18.5V/2.7A,18.5V/3.5A,18.5V/3.8A;Delta:19V/2.64A;Asus: 19V/2.64A;Nec:19V/2.64A etc.F 5 ... 6 (Optional) For DELL:19.5V/3.34A,19.5V/4.62A etc. For HP:18.5V,3.5A, 18.5V 4.74A specialH 7.9 ... : 12, 15V / 4.6 A 16, 18, 19V, 20V / 3.5 A 24V / 2.9 A5. Adjustable output voltage6. Power LED ...