The Prolink PRO3000SFCU-4U21 Series 3KVA Line Interactive UPS is a single-phase UPS designed to provide reliable backup power and voltage protection for computers, servers, networking equipment, and other sensitive electronic devices. It features super-fast charging technology, True AVR, wide input voltage support, and advanced protection for dependable everyday power management.

With a 3000VA capacity, the PRO3000SFCU-4U21 helps keep connected equipment operating during power interruptions, giving users time to continue working, save important data, and safely shut down their systems. Its wide input voltage range of 140–300VAC ±5% helps protect equipment from unstable mains voltage, while the typical 2ms transfer time enables a quick transition to battery power.

The UPS also supports 50/60Hz auto-sensing, cold start functionality, generator compatibility, off-mode charging, and intelligent battery management. Its battery can recharge to 90% capacity within 2–4 hours, helping reduce downtime between power interruptions. Suitable for homes, offices, servers, and networking environments, the Prolink 3KVA Line Interactive UPS provides practical power backup and protection for critical devices.