FOUR CHANNEL VIDEO ENCODER SUPPORTING PAL/NTSC AND HD ANALOG CAMERAS. MULTIPLE, INDIVIDUALLY CONFIGURABLE H.264, H.265 AND MOTION JPEG STREAMS. FRAME RATE 25/30 FPS IN ALL RESOLUTIONS UP TO 1080P. AXIS ZIPSTREAM TECHNOLOGY FOR REDUCED BANDWIDTH AND STORAGE NEEDS.VIDEO MOTION DETECTION, ACTIVE TAMPERING ALARM AND AUDIO DETECTION. I/O FOR ALARM/EVENT HANDLING, SERIAL PORT FOR RS422/485 COMMUNICATION. POWER OVER ETHERNET OR 12-20V DC INPUT. MICROSD/MICROSDHC MEMORY CARD SLOT FOR OPTIONAL LOCAL VIDEO STORAGE. TWO-WAY AUDIO WITH ANALOG OR DIGITAL MICROPHONE.