Based on this product's specifications, here are some alternatives and similar models
Power adapter/inverter Zebra P1063406-032 for POS printer, auto DC1-to-DC2, black
Summary description:
Zebra P1063406-032 is a black power adapter/inverter designed for POS printers. It provides an automatic power supply function with DC1-to-DC2 current conversion and is supplied as a single unit. Intended to replace or eliminate a mobile battery by delivering stable DC power to compatible POS printing devices in retail and hospitality environments.