Based on this product's specifications, here are some alternatives and similar models
PoE adapter Lancom Systems 61738
Summary description:
The Lancom Systems 61738 PoE adapter provides Gigabit Ethernet connectivity with a voltage of 55 V and an output power of 30 W. It supports IEEE 802.3af and IEEE 802.3at standards, ensuring compatibility with various devices. With a maximum operating distance of 100 m, it is ideal for network setups. The adapter is compact, weighing 460 g and measuring 53 x 140 x 32.5 mm, making it easy to integrate into any environment. It operates on an input voltage of 100 - 240 V and is certified with GS Mark per EN 60950 for safety.