PACKAGE CONTENT - Tip Adapter Connector Converter 4.0x1.7mm to 5.5x2.5mm 20cm DC Power Connect Specification - Type: DC Converter Cable ; Total Length: 20cm / 7.87' ; Converter INPUT: 4.0mm*1.7mm Female ; Converter OUTPUT: 5.5mm*2.5mm Male with pin FEATURES - Purpleleaf Adapter converts a regular for HP Pavilion, Hp Envy, Hp Elitebook, HP Probook, HP Compaq, Compaq Presario charger! WITH A PIN inside the tip connector! to HP Stream Spectre Pavilion Envy Elitebook Split Chromebook charger. CONNECTOR - one side is 4.0x1.7mm female plug, another side is 5.5x2.5mm plug for Hp Pavilion, Hp Envy, Hp Elitebook, HP Probook, HP Stream, HP Spectre, HP Sleekbook,HP Chromebook NOTED - Please make sure the Tip Connecter size of the ac adapter are identical to what your need before buying.