Linux OS Embedded CS Mount Lens (Provide Optional Adapter for C Mount Lens) TI DaVinci Hardware Compression H.264 / MPEG-4 Video Compression 1 Channel Audio Compression High Resolution Video Preview: UXGA (1600×1200 Pixels) Support HD720p / 4CIF/ DCIF / 2CIF / CIF / QCIF Real Time Compression Support SDHC Card for Local Recording Support Dual Stream Compression Support Motion Detection, and Notification on PC Client Support both Variable Bit Rate and Variable Frame Rate Support TCP/IP, HTTP, DHCP, DNS, RTP/RTCP, PPPoE, etc. Support IE for Network Preview Support e-PTZ Function Support Sensor Alarm Input and Relay Output Support Network Intercom Function Compatible with Current SDK and Client Software