Based on this product's specifications, here are some alternatives and similar models
Power adapter/inverter HP 719309-001 45 W Indoor 100–240 V Black
Summary description:
HP 719309-001 is a 45 W indoor power adapter/inverter for laptops with input voltage 100–240 V. Designed as a replacement or spare power supply, it provides mains-to-DC conversion in a compact black housing. Suitable for use with compatible HP notebooks in home, office, or travel environments requiring mains power.