45 Watt AC Adapter Charger Power for Dell Inspiron 7000 Series 13" 15" Laptops Compatible with Models: For Dell Inspiron 7000 Series 13 7000 For Dell Inspiron 7000 Series 13 7000 2-in-1 For Dell Inspiron 7000 Series 15 7000  New Notebook Ac Adapter For Dell Optiplex 9020 9020M Micro Desktop   for Dell Inspiron 13 7000 Series 2-in-1 (7348), 14 (7437). for Dell Optiplex 3020M, 9020M Computer. for Dell XPS 11 (9P33), 12 (9Q23), 12 (9Q33), 13 (9333), 13 (9343), 13 (L321X), 13 (L322X).  Product description : Brand: Replacement Input: AC/DC 100-240V 50-60Hz Output: 19.5V~2.31A Power: 45W Connector size: interior diameter: 3.0mm; external diameter: 4.5mm (reference the pictures) If you are not sure , I recommend using a ruler to measure the diameter of your old power supply or laptop connector. tip size. Power cord: 3Ft length 3 Prong -Compatible Part Numbers CC0DT X9RG3 492-BBOF 312-1307 332-1827 450-18919 450-1846 450-18920 AA45NM131 DA45NM131 DA45NM140 HA45NM140 HK45NM140 LA45NM121 LA45NM131 LA45NM140 3RG0T 4H6VH CDF57 D0KFY JHJX0 JT9DM P47F P55F 03RG0T 04H6NV -Compatible with laptop models Note: Not all Dell Inspiron 11 13 14 15 3000 5000 7000 laptop can be compatibled.