for Dell Inspiron 14R N4110 P20G N4050 P22G M4040 N4120 N5050 N5040 P18F M5040 M5050 M4110.13Z N311Z P17S.14Z N411Z, M411R M421R.14R 5420 P33G,15R 7420,15R 5520(SE 7520),15R 7520,15R 3520.Vostro 1540 1550 2520 3330 3350 3450 3460 3550 P16F 3555 3560 1440 1445 1450 1550 V131 P18S.XPS L502X P11F