AC adapter HP 40W 19V model 758633-001, output 19V DC 2.1A, for compatible HP laptops

HP AC adapter 40W 19V model 758633-001 provides a stable 19V DC output at approximately 2.1A to power and charge compatible HP laptops. This compact external power supply uses a standard barrel connector and is designed for routine use at home, in the office or while travelling. The adapter includes internal voltage regulation and built-in protection against short circuits and overloads to maintain safe operation of connected devices.

Advantages

The adapter delivers a consistent 19V DC output suitable for a range of HP notebook models that accept a 40W power source. Its compact form factor reduces space on work desks and in bags while the integrated protection circuitry helps prevent damage from electrical faults. The unit’s plug-and-play design allows for immediate use without additional configuration.

Suitable for

• Powering compatible HP laptops that require a 19V DC, ~2.1A external adapter
• Replacing a lost or damaged original 40W HP power supply
• Everyday use at home, in the office, or when travelling
• Charging during power interruptions when connected to a UPS or portable power bank with AC output

Key specifications

• Output voltage: 19 V DC
• Output current: approximately 2.1 A
• Rated power: 40 W
• Connector type: standard barrel DC connector
• Form factor: external compact power brick
• Protection features: short-circuit and overload protection, built-in voltage regulation

How to use

Connect the adapter’s AC input cable to a suitable mains outlet and plug the barrel connector into the laptop’s DC input port. Ensure the connector is fully seated and the laptop indicates charging or receives power. When disconnecting, first remove the barrel connector from the laptop, then unplug the AC input from the mains. Use the adapter on flat, ventilated surfaces and avoid covering the power brick while in use to allow heat dissipation.

Recommendations

Confirm compatibility with your laptop’s required voltage and connector type before use. Use the adapter in environments within the manufacturer’s recommended temperature range, avoid exposure to moisture, and inspect the cable and connector regularly for signs of wear or damage. If the adapter becomes unusually hot, noisy, or emits an odor, disconnect it from mains power and replace it.