19.5V 4.62A 90W Laptop Adapter AC Charger for DELL 14R 15R 552 7520 14Z 17R5720 E6400 E7440 LA90PM111 DA90PM111 Supply 7.4 5.0mm

How To choose A adapterStep 1. please check the input data on your laptop or your adapter output.You will find voltage and current data.Such as 20V 3.25A 、19V 3.42A、19V 2.37A....Step 2. check your connection plug size.Out diameter * lnner diameterSuch as 5.52.5mm、4.01.7mm、 4.01.35mm....If still not understand ,please ask help from us !SpecificationColor: BlackInput Voltage: AC 100~240V 50/60HzPower: 90WOutput : 19.5V 4.62ADC tip: 7.45.0mmFeatures100% brand new and high quality.Made of quality components and circuit boardSafe and durable.High precise output voltage, small wave and low interference.Built-in IC chip provides overcharge protection system, short circuit, overload protection, over-heat protection.Package includes1 X AC Power Adapter