Individual Unit Accommodate 1 to 48 Camera Inputs at 30 Images per Second with synchronous audio inputs Easy to use due to friendly GUI interface Support large IDE HDD to meet long time storage requirement Hardware support H.264 Compression, 30% More Powerful than MPEG-4 Algorithm, only 45M/h HDD cost per channel Realtime remote monitoring and playback via internet, support IE browser network client Alarm-Before recording and alarm message sending Digital Map function Bi-direction remote call & talk function Remote recording and remote administrating