1）一年质保One year warranty；2）自动匹配，无须手动调节，高功率电压输出 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.适用电压VOLTAGE15V/M116V/M216V/M318.5V/M419V/M519V/M619V/M719.5V/M8