... ,15V/4A,15V/5A etcC 5.5*2.5mm For IBM:19V/3.42A;DELL:19V/3.16A,19V/3.42A ... ;GATEWAY:19V/3.16A,19V/3.42A, 19V/3.68A,IBM:16V/2.2A,16V/3.36A,16V/3.5A,16V ... specialK 7.9*5.5mm pin 1.0 (Optional) For IBM/LENOVO:20V/4.5A,20V/3.25A etc. 90W Universal ...