Based on this product's specifications, here are some alternatives and similar models
AC Adapter 2-Power EA-M50V
Summary description:
The 2-Power EA-M50V compatible AC Adapter provides a reliable output voltage of 18V. Its compact design features dimensions of 49mm width, 118mm depth, and 32mm height, making it easy to store and transport. The package dimensions are 128mm width, 190mm depth, and 54mm height. Ideal for powering compatible devices, this adapter ensures efficient performance and durability.