Product Details  Video Server  Video Server  IP server network server One Channel Video Server with RJ 45 port and SD Card Slot Size: 114 x 36 x 85 (mm) Net Weight: 250g IP function Features: 1. H.264 compression, best for Internet video Streaming 2. No Static IP address required, No DDNS service needed. 3. D1 Resolution.  4. Support Win CE based PDA and Mobile Phone local and remote viewing.  5. Support SD card recording, NAS recording, NVR recording, and remote view and recording. 6. Multi-streaming capability. 7. Support UPNP protocol. 8. Support DHCP, Static IP, PPPOE internet enviroments. 9. NVR support 128 cameras' D1 video recording in LAN. Can manage numerous IP cameras depending on the NVR PC's ability. 10. 3 Level (High, Middle, Low) user priority management. 11. Two-way audio function: audio in and audio out for speaker with amplifier (only for box type IP Camera) 12. With BNC connector for composite video output as normal camera.