AC adapter HP 120W 732811-002 with 4.5 mm barrel connector for HP laptops

AC adapter HP 120W 732811-002 with 4.5 mm barrel connector supplies up to 120 watts of power to compatible HP laptops. This adapter is designed to charge and power notebooks that require a 4.5 mm barrel plug and a 120W power source, providing a stable DC output for regular use at home, in the office or while traveling. The product is manufactured to match the electrical characteristics and connector type of original HP adapters used with certain business and consumer laptop models.

Advantages

The adapter delivers consistent power output to maintain battery charging and laptop operation under typical workloads. A 4.5 mm barrel connector ensures mechanical compatibility with systems that use this connector type. The unit includes built-in protection against short circuits and overcurrent conditions to reduce risk during normal operation. Its compact rectangular housing and integrated cable design make it convenient to carry and store.

Suitable for

• Charging and powering compatible HP laptops that use a 4.5 mm barrel connector and require up to 120W
• Replacing a lost or faulty original adapter with the same power and connector specifications
• Use in home offices, corporate environments, classrooms, and when traveling

Key specifications

• Output power: 120 W
• Connector type: 4.5 mm barrel plug
• Input: AC mains (universal input range for typical laptop adapters)
• Output: DC stabilized for laptop charging
• Protection: overcurrent and short circuit protection
• Form factor: external power brick with attached cable

How to use

Connect the adapter to an AC mains socket using the supplied mains lead, then insert the 4.5 mm barrel connector into the laptop power inlet until it seats securely. Confirm that the laptop indicates charging or external power through its status LED or on-screen indicators before use. For initial installation, power off the laptop or put it into sleep mode if recommended by the device manufacturer. Disconnect the adapter by first removing the barrel connector from the laptop and then unplugging the mains lead from the wall socket.

Recommendations

Use the adapter on a stable, flat surface and avoid covering the power brick to allow ventilation. Operate the adapter within the ambient temperature range recommended by your laptop manufacturer. If the adapter becomes unusually hot, emits odors, or shows visible damage, discontinue use and replace it. Use only with laptops that specify a 4.5 mm barrel connector and require 120W power to ensure safe and reliable operation.