| DVA3221 Hardware Specifications: | 
          
          
          
            | CPU | 
            Intel Atom C3538 Quad-core 2.1GHz | 
          
          
            | Hardware encryption engine | 
            Yes (AES-NI) | 
          
          
            | GPU | 
            NVIDIA GeForce GTX 1650 | 
          
          
            | Memory | 
            8 GB DDR4 non-ECC SO-DIMM (4 GB x 2; expandable up to 32 GB with 16 GB ECC SO-DIMM x 2) | 
          
          
            | Compatible drive type | 
            4 x 3.5” or 2.5” SATA HDD/SSD (drives not included) | 
          
          
            | Hot swappable drive | 
            Yes | 
          
          
            | External port | 
            
              - 3 x USB 3.2 Gen 1 port
 
              - 2 x eSATA port
 
              - 1 x COM (for POS system connection)
 
              | 
          
          
            | Size (Height x Width x Depth) | 
            166 x 250 x 237 mm | 
          
          
            | Weight | 
            4.92 kg | 
          
          
            | LAN port | 
            4 x Gigabit (RJ-45) | 
          
          
            | Wake on LAN/WAN | 
            Yes | 
          
          
            | Scheduled power on/off | 
            Yes | 
          
          
            | System fan | 
            1 (120 x 120 x 25 mm) | 
          
          
            | AC input power voltage | 
            100 V to 240 V AC | 
          
          
            | Power Frequency | 
            50 to 60Hz, single phase | 
          
          
            | Operating Temperature | 
            0°C to 40°C (32°F to 104°F) | 
          
          
            | Storage Temperature | 
            -20°C to 60°C (-5°F to 140°F) | 
          
          
            | Relative Humidity | 
            5% to 95% RH | 
          
          
            | Maximum operating altitude | 
            5,000 m (16,400 ft) | 
          
          
          
            | Networking protocol  | 
            SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP) | 
          
          
            | File system | 
            
              - Internal: Btrfs, ext4
 
              - External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
 
              | 
          
          
            | Supported RAID type  | 
            Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 | 
          
          
            | Storage management | 
            
              - Maximum single volume size: 108 TB
 
              - Maximum system snapshots: 65,536
 
              - Maximum internal volume: 64
 
              | 
          
          
            | SSD cache | 
            Read/write cache support | 
          
          
            | File sharing capability | 
            
              - Maximum local user account: 2,048
 
              - Maximum local group: 256
 
              - Maximum shared folder: 512
 
              - Maximum concurrent SMB/NFS/AFP/FTP connection: 2,000
 
              | 
          
          
            | Privilege | 
            Windows Access Control List (ACL), application privileges | 
          
          
            | Directory service | 
            Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration | 
          
          
            | Virtualization | 
            VMware vSphere 7 onwards, macOS 10.12 onwards | 
          
          
            | Security | 
            Chrome, Firefox, Edge, Internet Explorer 10 onwards, Safari 10 onwards, Safari (iOS 10 onwards), Chrome (Android™ 6.0  onwards) on tablets | 
          
          
            | Supported client | 
            Windows 7 onwards, macOS 10.12 onwards | 
          
          
            | Supported browser | 
            Chrome, Firefox, Internet Explorer 11 onwards, Safari 11 onwards; Safari (iOS 11 onwards), Chrome (Android™ 6.0 onwards) | 
          
          
          
            | Maximum IP camera | 
            
              - 32 channels (total of 960 FPS at 720p, H.264), including a maximum of 6 real-time Deep Video Analytics tasks
 
              - 8 free camera licenses included; additional cameras require the purchasing of additional licenses
 
              | 
          
          
            | Deep video analytics feature | 
            
              - Face recognition
 
              - People counting
 
              - People and vehicle detection
 
              - Intrusion detection
 
              | 
          
          
            | IP Camera support | 
            
              - Video codec: MJPEG, MPEG-4, H.264, H.265, and MxPEG (not supported by Deep Video Analytics tasks)
 
              - Audio codec: PCM, AAC, AMR, G.711, and G.726
 
              - Camera bit-rate fine-tuning via constant and variable bit-rate control
 
              - ONVIF™ 2.6, Profile S certified, Profile G for edge recording
 
              | 
          
          
            | Live View | 
            
              - Pan Tilt Zoom (PTZ) support with configurable PTZ speed
 
              - On-screen camera controls: camera zoom, focus, iris adjustment, auto pan, and auto object tracking
 
              - E-Map, Snapshot, and Snapshot Editor supported for instant editing after taking a snapshot
 
              - Video quality settings: bit-rate control, image quality, resolution, and FPS
 
              - Joystick support for easy navigation
 
              - Alert panel for a quick display of the most recently triggered events
 
              - Customizable layout and sequential camera view support
 
              | 
          
          
            | Recording | 
            
              - Supported recording modes: manual, continuous, motion detection, I/O alarm, action rule, and customized
 
              - Recording formats: MP4
 
              - The customized recording mode can be configured as a combination of conditional events, including motion detection,  audio detection, tampering detection, and alarm input
 
              - Edge recording on the SD card of certain supported cameras
 
              - Configurable pre-recording and post-recording time
 
              | 
          
          
            | Playback | 
            
              - Customizable layouts for playback in Timeline
 
              - Playback controls include pause, stop, previous recording, next recording, fast forward, slow motion, frame by frame,  and digital zoom in/out
 
              - Embedded watermark for evidence integrity
 
              - Image enhancements including brightness, contrast, saturation, and sharpness (web client only)
 
              | 
          
          
            | Management | 
            
              - Create and manage different user privileges
 
              - Rotate recorded videos by archived days or storage size
 
              - Event notification supported via SMS, E-mail, and mobile devices via DS cam
 
              - Recordings can be backed up to an external storage or remote server
 
              - Built-in NTP server
 
              - Supported tunnel: MPEG-4, H264 via RTSP over TCP, UDP, and HTTP
 
              | 
          
          
            | iOS/Android™ applications | 
            Synology LiveCam, DS cam, DS file, DS finder | 
          
          
            | Surveillance desktop client  support | 
            Windows 7 onwards, macOS 10.12 onwards | 
          
          
          
            | Environment safety | 
            RoHS compliant | 
          
          
            | Package content | 
            
              - 1 x DVA3221 main unit
 
              - 1 x Quick Installation Guide
 
              - 1 x Accessory pack
 
              - 1 x AC power cord
 
              - 2 x RJ-45 LAN cable
 
              | 
          
		  
            | Optional accessories | 
            
              - 16 GB DDR4 ECC SO-DIMM (D4ECSO-2666-16G)
 
              - Synology Expansion Unit DX517
 
              - VisualStation VS360HD, VS960HD
 
              - Surveillance Device License Pack
 
              | 
          
          
            | Warranty | 
            3 Years |