QUADPLEX (VIEW LIVE VIDEO/PLAYBACK/RECORD/NETWORK SIMULTANEOUSLY)500GB HARD DRIVEREMOTE CONTROLLING & MONITORING VIA TCP/IP (INTERNET EXPLORER: UP TO 4 USERS)CONNECTION BY IPHONE(R) ANDROID SYMBIAN BLACKBERRY AND WINDOWS MOBILEAUTOMATIC EMAIL NOTIFICATION FOR ALARM EVENTS & HARD DRIVE STATUSHIGH RESOLUTION 720 X 480REAL TIME DISPLAYRECORDING FRAME RATE: 240 FPSH.264 VIDEO COMPRESSION8 BNC VIDEO INPUTS/ 1 COMPOSITE & VGA OUTPUT4 AUDIO INPUTS & 1 OUTPUTRS485 SUPPORTBACK UP: USB 2.0 EXTERNAL HDD OR STICK MEMORYEVENT RECORDING BY ALARM SENSOR OR VIDEO MOTION DETECTIONPROGRAMMABLE RECORDING SPEED ON ALL 8 CHANNELSCOMPATIBLE WITH VGA MONITOR OR TV/COMPOSITE MONITORSUPPORTS UPNP IF ROUTER IS UPNP CAPABLESUPPORTS PTZ PROTOCOLDDNS SUPPORTOPERATING INTERFACE WITH INCLUDED MOUSE IR REMOTE CONTROLLER OR THE FRONT PANEL KEYPADUPC : 617517082056Shipping Dimensions : 14.00in X 18.00in X 4.00inEstimated Shipping Weight : 11.0