Based on this product's specifications, here are some alternatives and similar models
Uninterruptible Power Supply EVER SINLINE RT XL 2250, Line-Interactive 2.25 kVA / 2250 W, 9x C19 outlets, C20 input, LCD, rack/tower
Summary description:
Rackmount/tower UPS EVER SINLINE RT XL 2250 provides 2.25 kVA (2250 W) output with line-interactive topology and sine waveform. Features include AVR, surge protection, EPO, LCD display, 9 C19 outlets, C20 input, USB and RJ-45 ports, active cooling and typical backup times ~7 min at half load and ~3 min at full load. Battery: 4×12 V 9 Ah, recharge 4 h. IP20, operates 0–40 °C.