Description: 【Universal Adapter Set】: Power adapter set are a versatile solution for almost all common laptops on the market. Paired with a multifunctional DC power tester, it can initiate startup and charging for over 90% of laptops. 【Repair Specific】: Please note that this set is specifically designed for repair purposes and needs to be connected to a regulated DC power source for use. Direct connection to 220V will damage your laptops. 【 Multifunctional Power Adapter】: Multifunctional power adapter for laptops, power supplies, power banks, DC power supplies adapters, etc. 【Note】: The female end of the adapter is 5.5x2.1MM in size (meaning that your power adapter's DC power cord interface should have a male end of 5.5x2.1MM interface). 【Package】: Includes 1 Set adapters and 1 cable. Specification: Material: PC Size Chart: 0.55cmx0.21cm/0.22inchx0.08inch  Package Includes: Note: Please allow slightly errors 1-2cm differences due to manual measurement.