1. Transmission standard: USB2.0 standard (480Mbps)2. Working voltage: 5V-20V3. Working current: 3A4. The plug is made of aluminum alloy oxide shell, gold-plated contacts, and the wire is made of copper conductor5. Charger extension cord for type-c interface, or data extension6. Can be used for laptops, tablets, mobile phones, etc.Note: It is not compatible to extend the charging cable with built-in E-MARLER chip, that is, it can only extend the charging cable or data cable without E-MARKER a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a