5V USB A to DC 5.5 2.1mm Barrel Jack Power Cord Kit for 5V 3A 2A Devices

Output: DC 5V 3A (Compatible 5V 3000m A2.5A 2.1A 2A 1.75A 1.5A 1A 700mA 500mA 300mA) Cant charge for laptop ! Most laptops require MORE THAN 5V 3A. 13 DC Plugs: A 6.0*4.4mm?B 6.3*3.0mm?C 5.5*2.5mm?D 5.5(5.0)*3.0mm?F 4.8*1.7mm?G 4.0*1.7mm?L 3.0*1.0mm?H3.5*1.35mm?I 2.5*0.7mm?Microusb,MiniUSB, LED terminal connector,TypeC Plug. Please check the connector sizes of your product before purchase.