[Purchase Information:] 1. This 19V 3.42A power supply adapter is only compatible with electronic devices with an operating voltage of DC IN 19V, an operating current of 0.1A~3.42A, and a maximum power of up to 65W. such as DC 19V 3.42A, 3.16A, 2.1A, 1.5A. 2. Please check that the output voltage / output current of this power adapter is correct and that a suitable DC plug is compatible with your device before ordering. [19V 3.42A DC Power Supply Adapter Spec:] Worldwide Input Voltage: AC100-240V 50/60Hz, Output Voltage: DC 19V, Max Current 3.42A, Max Wattage 65W. ac power cord length is 1.2 Meters / 3.9 ft, dc power cord length is 1.5 Meters / 4.9 FT. Mains power adapter DC port: 5.5*2.5mm / 5.5*2.1mm. [19V AC DC Power Adapter Versatile Compatibility:] The TKDY 19Volt 3.42A laptop charger 19Vdc computer Accessories ac to dc power supply adapter compatible with most dc in 19Vdc equipment (65W power max). Compatible with for DC 19 Volts 3.42A Acer Toshiba Asus HP Gateway Chromebooks