AHD series DVR from eSSL is a state of an art device for small and medium scale enterprises. AHD series combines functionalities of Analog, Network and Analog HD cameras to form complete hybrid surveillance solutions. This tri Band series DVR enables and promotes & Upgrades the users to future proof solutions. ESSL AHD series DVR is enabled with dual streaming, peer to peer connectivity with 4TB of HDD support, 4ch 720p input and supports 1080P output. AHD DVR also supports real time monitoring via smart phones and tablets working on android, IOS, BlackBerry and Windows. Product Overview Parameters GUI: 32-bit True Color Operating System: Embedded Linux OS Password Security: Multi-level users management, 1 Admin + 19 users Video Input: AHD camera x 4 + IP camera x 4 Audio Input: 4 RCA VGA Output: 1024x768, 1280x720, 1280x800, 1280x1024, 1440x900, 1280x1080P HDMI Output: 1024x768, 1280x720, 1280x800, 1280x1024, 1440x900, 1280x1080P (1080 P) Spot Output: No ; Loop Output: No Audio Output: 1RCA Video Compression: H.264 High Profile Video Standard: PAL/NTSC Stream Type: Video & Audio/Video Video frame rate: Pal:1-25FPS, NTSC:1-30FPS Maximum frame rate: 120@720P+1080p@120 Video bit rate: 384kbps-3072kbps Dual Stream Resolution (Pixel): Main Stream (Recording) : IPCam: 1920x1080, 1280x720 Analog: 960x480, 704x480 (NTSC) Sub Stream (Network): 1/4 Main Stream Record Mode: Manual, Schedule, Motion Video Search: Date/time, Event Display: 1/4 windows optional Audio Compression: 8Kx16 bit ADPCM Audio bit rate: 32Kbps Recording Resolution: 4CH 720P AHD real time recording + 1CH realtime playback, 4CH 15 frames playback. 4CH 720P AHD + 4CH 3 Mega IP camera. 1CH 720P playback or 1CH 3Mega IP playback SATA Devices: 1 x SATA HDD Maximum capacity: 4TB External HDD: 1 x Esata (optional) USB Connector: 2 x USB2.0 Serial Interface: 1RS-485 serial port 2 way audio (voice talk): No Alarm input/output: Optional Network Interface: RJ 45, 10M/100M Ethernet Network Protocol: TCP/IP, SMTP, HTTP, DHCP, PPPoE, NTP, DDNS, UPnP, FTP, RTSP, Onwif Mobile: iPhone(IOS6.0 and above), iPad(IOS6.1 and above) Android Phone(3.0 and above), Android Pad(3.0 and above) System Upgrade: Supports USB update/Network update Remote Software: iView HVR APP Software, IE Browser, Google Chrome, Firefox Power supply: Input 100~240V, Output 12V 2A Consumption: 10W without HDD Working Temperature: -10°C~+55°C (14°F~131°F) Working Humidity: 10%~90% Dimension (mm): 260(W) x 41(H) x 230(D) Weight (w/o HDD/DVD±RW): 1.6Kg