Based on this product's specifications, here are some alternatives and similar models
Power adapter QOLTEC 33W 19V 1.75A for portable devices, model 52395
Summary description:
QOLTEC 33W power adapter (model 52395) outputs 19V at 1.75A for charging and powering compatible portable devices. Compact external adapter suitable for replacing original chargers with matching voltage and current ratings. Provides a stable DC supply for laptops, modems or other small electronics requiring 19V/1.75A. Ideal for home, office or travel use where a reliable replacement adapter is needed.