Network Video Recorder Eufy S4 — 8-channel NVR, 4K (3840x2160), 2 TB HDD, expandable to 16 TB, Black/Grey

eufy NVR S4 is an 8-channel network video recorder designed for use with eufy cameras, offering local AI processing for real-time threat detection and centralized 24/7 recording. The unit includes a pre-installed 2 TB hard drive (expandable up to 16 TB) and supports PoE cameras for simplified cabling. It integrates with Alexa and Google Assistant and can work with other eufy cameras when a Wi‑Fi module is used.

Advantages

The built-in local AI agent uses a 6T/8-core processor to analyze footage on-device for faster, more accurate threat identification and automatic responses, with customizable no-go zones and alerts. Plug-and-play PoE connections supply power and video over a single cable for easy installation. Smart video search lets you find events quickly by keyword instead of manually scrolling through recordings. The system supports expansion from 8 to 16 channels and remote AI-powered access for flexible monitoring.

Key specifications

• Video input channels: 8 channels (expandable to 16)
• Maximum resolution supported: 3840 x 2160 pixels
• HDD: 2 TB pre-installed; maximum storage capacity: 16 TB
• Network: Power over Ethernet (PoE) for cameras
• Processing: Built-in local AI processor (6T/8-core)
• Colours: Black, Grey

How to use

Connect each eufy PoE camera to the NVR using a single network cable to provide power and video transmission. For Wi‑Fi eufy cameras, install the required Wi‑Fi module and pair devices according to the manufacturer instructions. Configure no-go zones and alert settings through the eufy Security app or the NVR interface, and verify recording settings and storage allocation. For remote access, set up your account in the app and enable AI-powered streaming as needed.

Recommendations

For optimal performance, use official eufy cameras and keep the NVR firmware and app updated. If you require more channels or longer retention, upgrade the HDD up to 16 TB and expand to 16 channels. Ensure proper network and PoE switch capacity when connecting multiple cameras.