Based on this product's specifications, here are some alternatives and similar models
Uninterruptible power supply CyberPower CP900EPFCLCD Standby (Offline) 0.9 kVA 540 W 6 AC outlets
Summary description:
CyberPower CP900EPFCLCD is a standby (offline) UPS providing 0.9 kVA (540 W) output power with six AC outlets and a C14 coupler. It uses sealed lead‑acid (VRLA) battery technology, offers about 1 minute backup at full load, a USB 2.0 port for connectivity, and a tower form factor in a black plastic housing for protecting small servers, workstations and network equipment during power interruptions.