• Performance Parameter
• Video performance256-ch (768Mbps)

• Hardware
• Processor64-bit multi-core processor
• Cache8 GB
• Controller1

• Disk Management
• RAID TypeRAID 0, 1, 5, 6, 10
• Disk Interface TypeSATA
• Disk size4 TB/6 TB/ 8 TB
• Disk typeEnterprise HDD
• Hot swap diskSupported
• Number of disk interfaces36

• Storage Management
• Disk managementDisk alarm

• Device Maintenance
• Management modeLocal GUI，Web-based GUI, serial port CLI
• Log downloadingDownload on web page
• Alarm modeSound, email, web page

• Recording Management
• Recording modeTiming recording, manual recording
• Video protectionLock key video, N+M protection, ANR, video loss alarm
• Searching modeSearch by time and event
• Downloading modeDownload via web

• Network
• ProtocolRTSP;ONVIF;HTTP;HKSDK
• Access protocolSNMP,NTP,HTTP,HTTPS,IPv4,IPv6,SADP

• External Interface
• Data network interface4, 1000M Ethernet interface
• VGA1
• COM1, RS-232
• HDMI1
• USBFront panel: 2 × USB 2.0; Rear panel: 2 × USB 3.0
• eSATA Interface1

• General specification
• Chassis4U (19 inch)
• Dimension (W × H × D)447× 173× 572mm
• Weight (without HDDs)≤ 18.50kg
• Power ModuleAC 100 to 240 V,redundant power supply
• Rated power consumption550W
• Working temperature0 °C to + 55 °C (32 °F to 131 °F)
• Storage temperature-10°C to + 70 °C (14 °F to 158 °F)
• Working humidity10%～90%
• Storage humidity5%～90%

• HDD
• HDD ModelHikvision,HK728TAH,8T;