Details
Item: Power Adapter Connector Converter
Color: black
Material: plastic
Connector: one side is 7.4x5.0mm female plug, another side is 4.5x3.0mm plug

Adapter converts a regular for HP Pavilion, Envy, Elitebook, Probook, Compaq, Compaq Presario laptop charger! WITH A PIN inside the tip connector!
For HP Stream Spectre Pavilion Envy Elitebook Split Chromebook charger.