HP (Hewlett-Packard) AC power adapter.

an HP (Hewlett-Packard) AC power adapter. These adapters are standard components for a wide range of HP laptops and are recognizable by their specific design, including the "blue-tip" barrel connector.

​Identification

• ​Manufacturer: Hewlett-Packard (HP).
• ​Connector Type: 4.5mm x 3.0mm "Smart Pin" connector (indicated by the distinct blue tip).
• ​Form Factor: Standard rectangular brick design with an integrated cable and a modular power cord (though the cord is not shown in the image).

​Key Features

• ​Smart Pin Technology: The blue tip houses a central "pin" that communicates with the laptop's motherboard. This feature allows the laptop to identify the wattage of the charger to ensure it provides sufficient power while preventing damage from incompatible power sources.
• ​Voltage and Amperage: While the exact label text is small, HP chargers with this blue tip are typically rated for 19.5V. Depending on the specific model (often 45W, 65W, or 90W), the amperage will vary, but they are designed to automatically regulate power delivery based on the laptop's requirements.
• ​Safety Certifications: The markings on the label (such as the "NOM" symbol) indicate that this adapter meets various international safety and energy efficiency standards for electronic power supplies.
• ​Compatibility: This style of adapter is widely compatible with most modern HP Pavilion, Envy, Spectre, and ProBook series laptops that utilize the thin-barrel port.