90W之王万用笔记本电脑适配器，适用于15V/16V/18.5V/19V/19.5V/20V,功率在90W以内的笔记本电脑.The head of UNIVERSAL AC ADAPTERpowered 90W, applied to laptop battery voltaged 15V/16V/18.5V/19V/19.5V/20V and powered 90W or below.  1）一年质保One year warranty；2）自动匹配，无须手动调节，高功率精确电压输出 Automatically matching, high efficiency and accurate voltage output (without operated by hand).3）短路保护，当电流短路时自动复位到最低电压，有效保护笔记本电脑Short circuit protection, Auto-reset to the lowest voltage when short circuit, which can protect your laptop computer efficiently。4）配置8个转接头，方便用户对应不同电脑进行使用Assemble 8 connectors for use of all kinds of laptop computers of different voltages conveniently5）创新的转接头内置芯片设计，确保用户安全方便地使用  Chip designed inner Innovative connector,ensure user to use conveniently and safely.