Adapter set for the USB-C power supply units of the "NB USB" series. The respective adapter for your notebook can be connected to the power supply unit via USB-C. Contents: 7 adapters (tips) A: 20 V 6.5*4.4 mm for Sony D: 20 V 5.5*3.0 mm for Samsung I: 20 V 7.4*5.0 mm for HP H: 20 V 7.4*5.0 mm for Dell DELL: 20 V 4.5*3.0 mm for Dell O: 20 V 4.5*3.0 mm for HP M: 20 V 11*4.5 mm for Lenovo Important, check the dimensions of your plug and the voltage before purchase and use. Please note that the output voltage is 20 V when using the adapter.