Network Video Recorder DVA3221
Compatibility Downloads
Compatibility Downloads
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Deep Learning NVR DVA3221

Intelligent, Accurate, Private

Actionable insights

Video footage is transformed into actionable insights with advanced deep learning-based analytics, enhancing security without requiring additional personnel.

Actionable insights

Video footage is transformed into actionable insights with advanced deep learning-based analytics, enhancing security without requiring additional personnel.

On-prem recording and analytics

Powered by Synology DSM, footage is kept on the device, with options to flexibly backup or archive to other devices and locations.

Security & privacy

No footage is uploaded to the cloud for storage or analysis. Keep sensitive information secure and locked down.

No recurring fees

One-time hardware and license purchase, with no monthly subscriptions or additional fees for software updates.

Real-time results

Instead of post-event analysis, DVA3221 can notify security operators immediately when incidents occur.

Ease of integration

Compatible with over 7,600 IP cameras, and with ONVIF support, there is no need to replace or be locked into a specific brand of cameras.

Frequently Asked Questions

  • Are specialized cameras required for video analytics? What is the recommended resolution for each camera?

      All cameras listed under the IP Camera Support List are supported. We recommend installing cameras that support FHD 1920x1080 resolution and support 20 FPS (frames per second) or higher. Refer to the Admin Guide for more information.

    What notification methods are supported when an event is triggered?

      You can set up custom alerts via email, SMS, and the DS cam mobile app. Learn more

    Can Surveillance Station detect strangers and issue alerts?

      Yes. Using the facial recognition feature, alerts can be sent out when the system detects a person that cannot be matched to an existing entry. See the Face Recognition Admin Guide for additional information.

    Can the facial recognition feature be used together with door controllers and other devices to implement multi-step security processes?

      Yes. Surveillance Station has support for Axis Door Controller, I/O modules, IP speakers, POS systems, and other devices. By setting up action rules, you can leverage the events on one device to trigger another action somewhere else.

    How does the system handle lighting changes, shadows, and weather conditions such as rain?

      Leveraging advanced algorithms powered by the GPU, Surveillance Station's People and Vehicle detection functionality can detect and differentiate between those objects of interest with high accuracy, even in more challenging lighting environments.

    What external integration / API capabilities are supported?

      Surveillance Station API can be used to customize deployments for specific needs. For example, you can perform external analysis and bookmark frames of interest, pass facial recognition or people counting results to an external system. For more information, refer to the API Document.

    Does the DVA support NAS functionality found on other devices running DSM?

      Synology DVA series supports most features found on other Synology NAS and has access to Synology Package Center. For a comprehensive list of supported add-ons, refer to the supported package list.

*Synology is continually working on and improving new algorithms and features for our surveillance products. For questions or other suggestions, you can reach out to us here.

Administrator’s guides

Refer to the following administrators’ guides for instructions and suggestions for your deployment.

Face recognition

People and vehicle detection

People Counting

Intrusion detection

Licensing plan

By applying more license keys in Surveillance Station, you will be able to set up and manage more surveillance devices on your Synology products.

Contact Us

Not sure which Synology NAS is the best for your surveillance deployment? Contact us for recommendations.

Learn More

Hardware Overview

product DVA3221 front view photo
product DVA3221 back view photo
  • 1 Drive tray and status indicator
  • 2 Status indicator
  • 3 Alert indicator
  • 4 LAN indicator
  • 5 Drive tray lock
  • 6 Power button and indicator
  • 7 USB 3.2 Gen 1 port
  • 8 System fan
  • 9 Power port
  • 10 Kensington Security Slot
  • 11 Console port
  • 12 Reset button
  • 13 eSATA port
  • 14 1GbE RJ-45 port
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Notes:

  1. DVA3221 includes eight device licenses. Additional device license packs can be purchased to connect more IP cameras, I/O modules, access controllers, or transaction devices.
  2. The maximum number of Face Recognition tasks is six.
  3. Intrusion Detection is limited to six tasks when the feature is enabled for all objects. Learn more
  4. When recording in 4k resolution, the number of deep video analytics tasks is limited to eight. Learn more
Models
CPU
CPU
 CPU Model Intel Atom C3538
CPU Architecture 64-bit
CPU Frequency Quad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Memory
Memory
 System Memory 8 GB DDR4 non-ECC
Memory Module Pre-installed 8 GB (4 GB x 2)
Total Memory Slots 2
Maximum Memory Capacity 32 GB (16 GB x 2)
Notes
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
  • For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.
  • For more information on memory upgrade limitations, visit here.
Storage
Storage
 Drive Bays 4
Maximum Drive Bays with Expansion Unit 14 (DX517 x 2)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Hot Swappable Drive*
Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
External Ports
 RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.0 Port 3
eSATA Port 2
Appearance
Appearance
 Size (Height x Width x Depth) 166 mm x 250 mm x 237 mm
Weight 4.92 kg
Others
Others
 Wake on LAN / WAN
System Fan 120 mm x 120 mm x 1 pcs
Fan Speed Mode
  • Cool Mode
  • Quiet Mode
  • Full-Speed Mode
Power Recovery
Noise Level* 28.3 dB(A)
Scheduled Power On / Off
Power Supply Unit / Adapter 250 W
AC Input Power Voltage 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 43.92 W (Access)
28.43 W (HDD Hibernation)
British Thermal Unit 149.86 BTU/hr (Access)
97.01 BTU/hr (HDD Hibernation)
Notes
  • For more information on how power consumption is measured, refer to this article.
  • Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Temperature
 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
Certification
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • EAC
  • KC
Warranty
Warranty
 3-year hardware warranty, extendable to 5 years with EW202
Notes
  • Availability varies by region. Before purchasing, please visit the official web pages of EW201/202 and Extended Warranty Plus for a list of eligible regions.
  • The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
Environment
 RoHS Compliant
Packaging Content
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
Optional Accessories
Notes The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed. For more information, visit here.

Notes:

  1. Model specifications are subject to change without prior notice.
  2. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.