Based on this product's specifications, here are some alternatives and similar models
Power adapter QOLTEC 51517.65W for laptops, 19.5V DC, 220–240V input, connector 4.5×3.0+pin, indoor, black
Summary description:
QOLTEC 51517.65W is an indoor laptop power adapter with 220–240 V AC input and 19.5 V DC output. It includes a 4.5×3.0 mm connector with centre pin and comes in black housing. Compact dimensions (114×50×30 mm) and 0.238 kg weight make it suitable for home, office or travel use where a replacement or spare power supply is required.