Based on this product's specifications, here are some alternatives and similar models
UPS ALLNET All915019RT 1500VA line-interactive with USB and RS232
Summary description:
Line-interactive UPS ALLNET All915019RT with 1500VA capacity provides short-term power backup and voltage regulation for servers, network equipment and workstations. Equipped with USB and RS232 interfaces for monitoring and control, it supports orderly shutdowns and alerts. Suitable for small offices, server racks and critical home setups requiring reliable surge protection and runtime extension.