What is the difference between an adapter with two prongs and an adapter with three prongs?

An adapter with three prongs has an extra line which connects to the ground. This can pro...

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What is the difference between an adapter with two prongs and an adapter with three prongs?

An adapter with three prongs has an extra line which connects to the ground. This can protect you in the event of electricity leakage and/or static electricity.

This adapter has been tested and is guaranteed to work with the compatible laptop models.

Compatible Models:
Dell XPS
M1210 / M140 / M1410 / M1530 / M1020

Dell Inspiron
E1405 / E1505 / E1705 /1420 / 1150 / 14 / 12 / 1750 / 1318 / 1410 / 1425 / 1401 / 1427 / 1440 / 1721 / 1720 / 13
1525 / 1520 / 1501 / 1521 / 1526
8600 / 8500
600M / 700M / 710M / 640M / 500M / 300M / 505M / 630M / 510M / 610M
6000 / 6400

Dell Latitude
X300 / E4300

Dell Vostro
1400 / 1000 / 1500 / 1310 / 2510 / 1200 / 1510 / 1320 / 1220
Dell M109S Projector



  • 1.5m power supply cord included
  • 100% Guarantee to work as original adapter
  • Power Input: AC100-240V; Output: 19.5V 3.34A. Tip size: 7.4*5.0mm Central Pin; Please verify that the DC output & connector size match your original adapter before purchasing
  • Built-in overload, over-voltage, and short circuit protection; High energy efficiency - friendly to the environment, and your laptop
  • 2 Years Warranty and no hassle return
  • 1.5m power supply cord included
  • 100% Guarantee to work as original adapter
  • Power Input: AC100-240V; Output: 19.5V 3.34A. Tip size: 7.4*5.0mm Central Pin; Please verify that the DC output & connector size match your original adapter before purchasing
  • Built-in overload, over-voltage, and short circuit protection; High energy efficiency - friendly to the environment, and your laptop
  • 2 Years Warranty and no hassle return

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