We have been using these chargers for over a year now and I am confident enough with this product to sell them to you.  These chargers support many different models of laptops, however does not support all.  Please ensure that this charger had the right adapter for your laptop, returns because of compatibility will be accepted but postage is not refundable.  Please contact us if you are unsure of compatibility, we will be glad to help.

Specifications

• Input Voltage: 100-260V (input frequency: 50-60Hz)
• Input rated current: 1.0 Amps
• Input power: 90VA
• Output voltages: DC15-24V;  12V, 15V @4Amp;  16V, 18V, 19V, 20V @3.5Amp;  24V @2.9Amp
• Output Power: 90W
• Efficiency: >80% (TYP)
• Line regulation: +- 5%
• Overload and Short Circuit protection

Included tips:

• 6.5 x 1.4mm
• 6.3 x 3.6mm
• 5.5 x 2.5mm
• 5.5 x 2.1mm
• 5.5 x 1.5mm
• 5.0 x 1.0mm
• 4.75 x 1.7mm
• 4.0 x 1.7mm
• Dell "3 prong" tip

Again, please contact us if you are unsure about compatibility.