* Up to 30 fps in D1 Resolution
* Real-time H.264, MPEG-4 and MJPEG compression (Triple Codec)
* 4-CH Video and Audio In
* Two-way Audio
* RS-485 Interface for PTZ Camera Control
* 4 Digital I/O for External Sensor and Alarm
* Built-in SD/SDHC Card Slot for On-board Storage
* DC 12V / AC 24V Compatible Power Input
* Professional Rack Mount Compatible Design
* Supports Gigabit Ethernet Data Transmission
