For someone always working with the laptop， the benefit of this2.5 x 0.7mm 40W 19V 2.1A Power Adapter with US Plug AC Power Cable for Asus Laptops (100-240V) must be beyond expression. Especially designed for Asus laptops， our power adapter allows you to charge your laptop and keep it working whether you’re in the office or working outside. Compact and portable， it occupied little space and takes not much labor for storing and carrying. Ordering it means taking convenience with you! Action now!                                    Features             Adopt imported electronic components with high quality<br> The circuit board comes with over-voltage/over-current/short circuit protection<br> Standard design with high compatibility， efficiency and reliability<br> Compact and portable， little space occupied for storage and carrying<br> A durable and well-made laptop power adapter guarantees long term use<br> Allow you to charge your laptop and keep it work whether you’re in the office or working outside<br> Confirm the specific voltage， current and interface that your device has before purchase   <br>                                                            Specifications             Quantity     1 Set    <br> Color     Black    <br> Material     ABS    <br> Type     Laptops    <br> Compatible Brand     Asus    <br> Compatible Model     For Asus    <br> Tip Diameter     2.5 x 0.7    <br> Input Frequency     50~60Hz    <br> Input Voltage     100~240V    <br> Output Current     2.1A    <br> Output Voltage     19V    <br> Dimensions     (3.39 x 1.42 x 1.02)" / (8.6 x 3.6 x 2.6)cm (L x W x H)    <br> Weight     7.2oz / 204g     <br>                                                             Package Includes            1 x Power Adapter<br>1 x AC Power Cable (120cm)<br>