Based on this product's specifications, here are some alternatives and similar models
Server Power Supply No name RN500 — Pulsar RN500 voltage reducer module
Summary description:
Server power supply/voltage reducer module No name RN500 (Pulsar RN500) designed to reduce and stabilize voltage for server or IT equipment. Compact module intended for integration into server racks or power systems where voltage regulation is required. Suitable for protecting sensitive electronics and ensuring stable operation of devices that require regulated input.