Based on this product's specifications, here are some alternatives and similar models
Uninterruptible power supply Eaton 3S450D Standby (Offline) 0.45 kVA / 270 W, 6 AC outlets, VRLA battery
Summary description:
Eaton 3S450D is a standby (offline) uninterruptible power supply with 0.45 kVA (270 W) output capacity and six AC outlets. It uses sealed lead‑acid (VRLA) battery technology, includes a 1.5 m power cable and meets IEC safety standards (62040‑1, 62040‑2 C2, 62040‑3, 62040‑4, 61643‑11). Compact form factor (325×140×86 mm) for desktop or small rack use to protect PCs, network devices and peripherals from power interruptions and surges.