ADAPTOR HP COMPAQ HP 18.5V 3.5A (4.8*1.7) 300 2200 2800 A900 B1000 B2000 C300 C500 C700 F500 F700 M2000 1000 V2000 V3000 V4000 V5000 HP CQ 500 CQ 510 CQ 520 CQ 530 CQ 540S NC4000 TC1000 TC1100 TC4200 G3000 G5000 G6000 G7000 HP DM3 DV100 DV2000 DV4000