Specification:
Input: 100-240v 50/60hz
Output: 19.5V 2.31A 45W
Interface: 4.5mm x 3.0mm

Compatible Models :
for Dell Inspiron 14: 3451 3452 3458 5451 5458 7437
for Dell Inspiron 15: 3552
for Dell Inspiron: i3168 i3552 i3558 i5378 i5555 i5559
for Dell Latitude 12: 7202
for Dell Latitude 13: 3379
for Dell Latitude 14: E5450
for Dell Vostro 14: 3458 3459 5459
for Dell Vostro 15: 3358 3558 3559
for Dell XPS 11: 9P33
for Dell XPS 12 12D: L221x 9Q23 9Q33
for Dell XPS 13: 321X 322X L321X L322X 3943 9333 9343 9344 9350
for Dell Optiplex 3020 3040 7040 9020 3046 XPS Duo 12 – 9Q23

dell19-5v-2-31a-charger-4-5 3-0-small-pin Part Number:
CC0DT X9RG3 492-BBOF 312-1307 332-1827 450-18919 450-1846 450-18920 450-18066,AA45NM131
DA45NM131 DA45NM140 HA45NM140 HK45NM140 LA45NM121 LA45NM131 LA45NM140 4H6VH CDF57 D0KFY JHJX0 0JHJX0
, JT9DM P47F P55F 03RG0T 0X9RG3 04H6NV，PA-1450-66D1 FA45NE1-00