2026/03/25
When power outages, network failures, or hardware issues strike, your surveillance can’t afford to pause. Sunell’s N+1 Hot Spare NVR solution delivers 100% uninterrupted data security for mission-critical surveillance systems. ✅ How it works: Master NVRs (up to 10 units) run your daily surveillance operations Slave NVR acts as a real-time hot standby, syncing all recorded data continuously Instant failover: If the master NVR goes down, the slave takes over seamlessly—no data loss, no gaps in cov