Annke 4K 8MP 4-camera PoE surveillance security system 2.8-12mm motorized varifocal lens

Four-camera 4K PoE surveillance kit

This system bundles four 8-megapixel dome cameras that stream 3840 by 2160 video at up to 15 frames per second. Each camera uses a single Ethernet cable for both power and data, simplifying installation for home or small-business owners who want high-resolution coverage without separate power runs. Built-in microphones capture audio with environment noise filtering.

PoE bandwidth and storage limits

One cable carries video, audio and power, so the network switch must supply enough PoE budget for all four cameras simultaneously. On-board recording relies on a micro-SD slot that accepts cards up to 512 gigabytes; H.265+ compression keeps bit-rates between 32 kilobits and 16 megabits per second, but continuous 4K recording will fill the card faster than lower-resolution streams.

Motorised zoom and night-vision range

The 2.8-to-12-millimetre motorised varifocal lens lets you adjust the field of view remotely, providing detection ranges from 6.8 to 200 metres depending on zoom level. Dual-light night vision switches between infrared and full-colour modes, while human and vehicle detection reduces false alerts. Buyers who need more than four cameras or longer retention than a single 512-gigabyte card provides should plan for additional storage.