Adapter is commonly used in providing timely and efficient power supply for charging laptops， such as this 5.5 x 2.5mm 19V 3.42A Power Adapter with US Plug AC Power Cable for Acer Laptops (100-240V) in front of you. It will be your best helper when you wish to keep your laptop alive during a long trip or in the office. The power adapter can not only provide you with high stability， but also offer effective charging. What’s more， its compact design is made for easy storage and the solid material adopted makes it a durable product for all wise consumers!                                    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     1Piece    <br> Color     Black    <br> Material     ABS    <br> Type     Laptops    <br> Compatible Brand     Acer    <br> Compatible Model     For Acer    <br> Tip Diameter     5.5 x 2.5    <br> Input Frequency     50~60Hz    <br> Input Voltage     100~240V 11 Output Current: 3.42A    <br> Output Voltage     19V    <br> Certification     RoHS， CE， FCC    <br> Other Features     Adopts Imported Original Electronic Components， with Over-voltage Protection， Over-current Protection and Short-circuit Protection; 100% Compatible with Original Power Supply.    <br> Dimensions     (4.25 in x 1.81 in x 1.14)" / (10.8 x 4.6 x 2.9) cm(L x W x H)    <br> Weight     9.35 oz / 265 g     <br>                                                             Package Includes            1 x Power Adapter<br>1 x AC Cable (120cm)<br>