|  | SNK1632RD  | SNK1664RD  | SNK16128RD  | 
        
            | Video/Audio Input  | 
        
            | IP Camera Input  | 32 channel  | 64 channel  | 128 channel  | 
        
            | Resolution  | QXGA, 1080p, UXGA, 960p, 720p, XGA, SVGA, D1, CIF, QCIF  | 
        
            | Compression Format  | H.264  | 
        
            | Protocols  | Onvif, RTSP, SDK  | 
        
            | Incoming Bandwidth  | 160Mbps  | 320Mbps  | 640Mbps  | 
        
            | Live Viewing  | 
        
            | Local Display  | 2 x HDMI, 1 x VGA, simultaneously output different content  | 
        
            | Multi-Screen Display Local monitor (Main / Secondary):
 | 1/1/1, 4/1/1, 9/1/1, 15/1/1, 16/1/1, 24/1/1, 25/1/1, 35/1/1, 1+4/1/1, 1+8/1/1, 1+9/1/1, 1+15/1/1, 4/4/4, 9/9/9, 16/16/16  | 1/1/1, 4/1/1, 9/1/1, 15/1/1, 16/1/1, 24/1/1, 25/1/1, 35/1/1, 36/1/1, 48/1/1, 49/1/1, 63/1/1, 64/1/1, 1+4/1/1, 1+8/1/1, 1+9/1/1, 1+15/1/1, 4/4/4, 9/9/9, 16/16/16, 4/16/16, 16/24/24  | 1/1/1, 4/1/1, 9/1/1, 15/1/1, 16/1/1, 24/1/1, 25/1/1, 35/1/1, 36/1/1, 48/1/1, 49/1/1, 63/1/1, 64/1/1, 1+4/1/1, 1+8/1/1, 1+9/1/1, 1+15/1/1, 4/4/4, 9/9/9, 16/16/16, 4/16/16, 16/24/24, 35/48/48  | 
        
            | Multi-Screen Display Client
 | up to 4 screens simultaneously: 1, 3, 4, 9, 12, 16, 20, 25, 30, 36, 42, 49, 56, 63, 64
 1+5, 1+7, 1+8, 1+9, 1+11, 1+15, 1+16, 1+33, 1+47, 1+48
 | 
        
            | E-Map  | Live Viewing in E-Map (NVR Station)  | 
        
            | Function  | E-PTZ / Scheme / Polling / TV-Wall (optional with decoder)  | 
        
            | Recording  | 
        
            | Resolution  | QXGA, 1080p, UXGA, 960p, 720p, XGA, SVGA, D1, CIF, QCIF  | 
        
            | Mode  | Manual / Continuous / Schedule / Event (Pre / Post)  | 
        
            | Event Trigger  | Alarm input / Video lost / Motion Detection  | 
        
            | Tag  | Supported  | 
        
            | Reliability  | Automatic Network Replenishment (ANR)  | 
        
            | Search & Playback  | 
        
            | Search Mode  | Date & Time (Calendar) / Event  | 
        
            | Resolution  | QXGA, 1080p, UXGA, 960p, 720p, XGA, SVGA, D1, CIF, QCIF  | 
        
            | Playback  | Local monitor: 16 x 1080p@30fps  | 
        
            | Client: 8 x 1080p@30fps  | 
        
            | Synchronize Playback  | Local monitor: 16 x 1080p@30fps  | 
        
            | Client: 4 x 1080p@30fps  | 
        
            | Function  | Slow forward / Fast forward / Loop / Single Frame / E-PTZ  | 
        
            | Storage  | 
        
            | Max. Internal HDDs  | 16 x 3.5'' HDD  | 
        
            | Max. 64TB (up to 4TB/each)  | 
        
            | RAID  | RAID 0/1/5/6/10  | 
        
            | External  | IP SAN (iSCSI), up to 10 x IP SAN, Max. 100T  | 
        
            | Function  | Disk group / Quota  | 
        
            | Audio  | 
        
            | Compression  | G.711a / G.711u / ADPCM / G.722 / G.722.1c / AAC-LC  | 
        
            | Bit rate  | 32kbps ~ 64kbps  | 
        
            | Audio Function  | Bi-directional audio / Dumb / Mute / Broadcasting  | 
        
            | Alarm  | 
        
            | Alarm Triggers  | Alarm input / Video lost / Motion Detection / System alarm  | 
        
            | Alarm Events  | Snapshot / Recording / PTZ preset / Alarm out / Buzzer / Email / Link to Client / Alarm caption  | 
        
            | System  | 
        
            | Operation System  | Embedded Linux  | 
        
            | User Management  | Admin / User  | 
        
            | Log Management  | User login / User operation / Alarm / Backup / Update  | 
        
            | Application Programming  | NVR Station SDK  | 
        
            | Network  | 
        
            | Network Protocol  | TCP/IP, UDP, HTTP, DHCP, DNS/DDNS, RTP/RTCP, RTSP, PPPoE, FTP, SNTP, VSIP  | 
        
            | Viewer Software  | CMS (NVR Station) / Web / iOS app / Android app  | 
        
            | Max. User Access  | 64 Users  | 
        
            | Output Bandwidth  | 256Mbps  | 
        
            | Function  | NAT / Socks5 / Multiple network access / Packet loss recovery / Auto network organizing  | 
        
            | Network Test  | Supported  | 
        
            | Interfaces  | 
        
            | Ethernet  | 3 x Gigabit network port, RJ45 interface  | 
        
            | Video Out  | 2 x HMDI (1 HDMI up to 4K x 2k, 1 HDMI up to1920 x 1080@60Hz)  | 
        
            | 1 x VGA (up to 1920 x 1080@60Hz)  | 
        
            | Audio In / Out  | 1 x RCA Line in / 1 x RCA Line out  | 
        
            | Alarm In / Out  | 2 x Inputs / 2 x Outputs  | 
        
            | Control  | 2 x RS485  | 
        
            | USB  | 2 x USB 2.0, 2 x USB 3.0  | 
        
            | Environmental  | 
        
            | Operating Temperature  | -10°C ~ 55°C / 14°F ~ 131°F  | 
        
            | Operating Humidity  | 10% ~ 85%  | 
        
            | Electrical  | 
        
            | Power  | 100 ~ 240V AC, 50 ~ 60Hz  | 
        
            | Power Consumption  | Max. 150W (HDD not included)  | 
        
            | Mechanical  | 
        
            | Weight  | 20Kg / 44lb (HDD not included)  | 
        
            | Dimensions  | 483 x 500 x 156mm / 19.02'' x 19.69'' x 6.14'  |