Based on this product's specifications, here are some alternatives and similar models
UPS APC Smart-UPS SC 450VA 230V - 1U Rackmount/Tower, 0.45 kVA, 280 W
Summary description:
The APC Smart-UPS SC 450VA is a line-interactive UPS designed for rackmount or tower use. It provides 0.45 kVA output power and 280 W capacity, ensuring reliable power backup. With a sealed lead-acid battery offering 108 VAh, it delivers a typical backup time of 5.9 minutes at full load. The unit features 4 AC outlets (C13 coupler) and is compliant with various certifications including RoHS and CE, making it a safe and efficient choice for protecting your equipment.