1.Model Number: DC power adapter ADP-90SB BB 19V 4. ... Best customer service and good quality with compatitive price~ Specification:1.Place of Origin: Guangdong China (Mainland) 2.Brand Name: original3 ... series: L4, L4000, L4000E, L4000H, L4000L, L4000R, L41, L42, L44, L45, L4E, L4H, L4L, L4RFor ASUS L7 series: L7, L7000, L7000B ... ADP-90SB BB 19V 4.74A (5.5*2.5mm 1 Pin)