Parameter: Input: AC 100V~240V 50/60Hz Output Voltage: DC 19V (constant voltage) Output Current: Max 3.42A (3420mA) Output Wattage:Max 65W Output DC connector:5.5mm x 2.5mm (inside"+", outside"-") Additional DC Plug Size: A 6.5*4.4 mm, H 5.5*3.0 mm, D 5.5*2.1 mm, E 5.0*1.7 mm, F 4.8*1.7 mm, 4.5*3.0 mm, G 4.0*1.7 mm, J 4.0*1.35 mm, L 3.0*1.0 mm DC Connectors’ Specification and Partial Applicable Models: 5.5*2.5mm for 19V 3.42A 2.37A ASUS MSI Toshiba Lenovo Medion Notebook 6.5*4.4 mm for 19v Sony vaio, Samsung LED LCD TV Monitor, 19v LG LED LCD Monitor, Widescreen LED LCD HD TV. 5.5*3.0 mm for 19V 3.16A Samsung Laptop. 5.5*2.1mm for :19V 3.16A 3.42A Acer Liteon Nec Gateway. 5.5*1.7 mm for 19V Acer aspire travelmate Gateway Hp ASUS Liteon Delta notebook, Acer monitor. 4.8*1.7 mm for 19V HP pavilion COMPAQ presario notebook. 4.5*3.0 mm for 19V HP laptop chromebook. 4.0*1.35 mm for 19V 2.37A 3.42A Asus laptop chromebook models. 4.0*1.7 mm for 19V 1.58A 2.31A 2.37A Toshiba laptop chromebook. 3.0*1.0 mm for 19V 2.1A 2.37A 3.42A Acer Samsung Asus laptop chromebook. Is this DC 19V 3.42A power supply compatible with your device? 1. Check Voltage: Please check the parameter label of your device and check the working voltage. It should be 19V DC, not be AC 19V or lower/higher than 19V DC. Otherwise, your device will not work or be damaged. 2.Check Current: Check the max current your device will draw. It should be equal to or less than 3.42A, such as 19V 3.42A 3.34A 3.16A 3A 2.8A 2.5A 2.37A 2.31A 2.1A 2A 1.58A. Otherwise, your device won’t work well and the power supply will be damaged very soon. 3.Check power input port: Check the power input port of your device. Its outer diameter and inner core diameter should should be the same as those listed above. Inner core polarity should be"+", exterior polarity should be" - ". Otherwise, the power supply can't be plugged into your device. If your device's voltage is 19V DC, the current is less than 3.42A, the power port is the same size as the listed DC connector, and the inside polarity is "+", outside polarity is "-", you can choose this 19V 3.42A power supply. Otherwise, please choose other power supply according to above instructions.?[Package Includes:] 1x 19V 3.42A AC Adapter +9x Different Size DC Plugs+1x US Power Cable, 2 year warranty. ?[Multiple Protection:] This power adapter converter has passed UL Certification, Build in IC Smart Chip, overcharge Protection System/Short circuit/Overload protection/Over-heat protection. transformer class VI energy efficiency, ratio ordinary adaptor more Energy saving. ?[Additional DC Plug Size:]It comes with a original 5.5x2.5mm DC tip and extra 9pcs frequently used tips: A 6.5*4.4 mm, H 5.5*3.0 mm, D 5.5*2.1 mm, E 5.0*1.7 mm, F 4.8*1.7 mm, 4.5*3.0 mm, G 4.0*1.7 mm, J 4.0*1.35 mm, L 3.0*1.0 mm. This will greatly expand its application scope. Just buying one ac adapter, you can power most of 19V devices. Save space and money for you. ?[Scope of Application:] Perfect for most 19V devices less than 65W. Such as 19V Asus/ Toshiba/ Lenovo/Acer/ HP/ Gateway/ Chromebooks Ultrabooks Notebook, 19V LG Samsung LCD LED Monitor, HDTV, 3D Widescreen, Bluetooth Speaker, Printers, Audio Amplifier,JBL Wireless Bluetooth Speaker etc. ?[Specification:] Input: 100V-240V 50/60Hz; Output: 19V DC, 3.42A Max. DC Polarity: Inner Positive(+), Outer Negative(-);Connector size: 5.5mm x 2.5mm.