Four-channel bare bone video encoder (PCB without mechanics). Dual streaming H.264 and Motion JPEG on all channels. Max D1 resolution at 30/25 (NTSC/PAL) fps on all streams. Video motion detection. Active tampering alarm. Two-way audio with audio detection. Power over Ethernet (IEEE 802.3af). Local storage using microSDHC card. PTZ support. No power supply included.