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Description
Synology Network Video Recorder DVA3221 4bay desktop NVR Atom C3538 8GB DDR4 108TB RetailMPN DVA3221 CPU CPU Model Intel Atom C3538 CPU Architecture 64 bit CPU Frequency Quad Core 2. 1 GHz Hardware Encryption Engine (AES NI) Yes GPU GPU Model NVIDIA GeForce GTX 1650 Notes Display output is not supported. Storage Drive Bays 4 Maximum Drive Bays with Expansion Unit 14 (DX517 x 2) Compatible Drive Type 3. 5" SATA HDD 2. 5" SATA HDD 2. 5" SATA SSD Maximum Internal Raw Capacity 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) Maximum
MPNDVA3221
CPU
CPU Model
Intel Atom C3538
CPU Architecture
64-bit
CPU Frequency
Quad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Yes
GPU
GPU Model
NVIDIA GeForce GTX 1650
Notes
Display output is not supported.
Storage
Drive Bays
4
Maximum Drive Bays with Expansion Unit
14 (DX517 x 2)
Compatible Drive Type
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
224 TB (16 TB drive x 14) (Capacity may vary by RAID types)
Maximum Single Volume Size
108 TB
Hot Swappable Drive
Yes
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.
The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit.
Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports
RJ-45 1GbE LAN Port
4 (with Link Aggregation / Failover support)
USB 3.0 Port
3
eSATA Port
2
COM Port
1
Others
Wake on LAN / WAN
Yes
System Fan
120 mm x 120 mm x 1 pcs
Fan Speed Mode
Cool Mode
Quiet Mode
Full-Speed Mode
Power Recovery
Yes
Noise Level
28.3 dB(A)
Scheduled Power On / Off
Yes
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
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Temperature
Operating Temperature
0oC to 40oC (32oF to 104oF)
Storage Temperature
-20oC to 60oC (-5oF to 140oF)
Relative Humidity
5% to 95% RH
Certification
FCC
CE
BSMI
EAC
VCCI
RCM
Environment
RoHS Compliant
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
DDR4 ECC SODIMM: D4ECSO-2666-16G
Expansion Units: DX517
3.5" SATA HDD: HAT5300
2.5" SATA SSD: SAT5200
VisualStation: VS960HD/VS360HD
Surveillance Device License Pack
Notes
The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed.
Surveillance Station
Video Analysis
Deep Video Analytics Feature
People and vehicle detection
People counting
Face recognition
Intrusion detection
Maximum Number of Deep Video Analytics Tasks
6
Maximum Number of Registrations Supported by Face Database
10,000
General Specifications
Maximum IP cam
32 (including 8 Free License)
Total FPS (H.264)
960 FPS at 720p (1280x720), 32 Channels
448 FPS at 1080p (1920x1080), 32 Channels
280 FPS at 3M (2048x1536), 28 Channels
190 FPS at 5M (2591x1944), 19 Channels
130 FPS at 4K (3840x2160), 13 Channels
Total FPS (H.265)
960 FPS at 720p (1280x720), 32 Channels
960 FPS at 1080p (1920x1080), 32 Channels
320 FPS at 3M (2048x1536), 32 Channels
200 FPS at 5M (2591x1944), 20 Channels
150 FPS at 4K (3840x2160), 15 Channels
Video Codec
H.264
H.264+
H.265
H.265+
MJPEG
MPEG-4
MxPEG (not supported by Deep Video Analytics tasks)
Audio Codec
AAC
AMR
G711
G726
PCM
Notes
Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
The maximum channel number also includes devices installed on Virtual DSM.
System Services
File System
Internal Drives
Btrfs
EXT4
Storage Management
Maximum Internal Volume Number
64
Supported RAID Type
Synology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration
Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs
Synology Hybrid RAID
RAID 10
RAID 1
RAID 5
RAID 6
Volume Expansion by Adding a HDD
Synology Hybrid RAID
JBOD
RAID 5
RAID 6 (with Expansion Unit)
Global Hot Spare Supported RAID Type
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
File Services
File Protocol
CIFS/AFP/NFS/FTP/WebDAV
Account and Shared Folder
Maximum Local User Accounts
2,048
Maximum Local Groups
256
Maximum Shared Folder
512
General Specifications
Networking Protocols
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
Google Chrome
Firefox
Supported Language
English, Deutsch, Franais, Italiano, Espaol, Dansk, Norsk, Svenska, Nederlands, , Polski, Magyar, Portugus do Brasil, Portugus Europeu, Trke, esk, , , , ,
VPN Server
Maximum Connections
30
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 2368 reviews
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Product Reviews
★★★★★ 5
Heartfelt Gesture of Appreciation
Size: Classic Cozy Collection, Color: "Thank You" Card
The Unboxme Thank You Gift Box proved to be the epitome of a thoughtful and appreciated gift. I recently chose this box as a thank you gift for my mother-in-law, and it was met with genuine delight and gratitude.
The Warm + Cozy theme of the box was not just a label; it encapsulated the essence of the carefully curated items within. From the moment she opened the box, my mother-in-law was greeted with an array of cozy delights that radiated warmth and care.
The inclusion of quality items, such as a plush blanket, scented candle, and gourmet treats, showcased the attention to detail in selecting items that truly contribute to a cozy and comforting experience. The blanket, in particular, was not just a token gesture but a genuinely luxurious addition that she immediately embraced.
The packaging was not only aesthetically pleasing but also conveyed a sense of thoughtfulness and care in the presentation of the gift. The attention to detail in the arrangement of items and the quality of the box itself elevated the entire unboxing experience.
What made this gift even more special was its versatility. The Warm + Cozy box is suitable for various recipients, including clients, coworkers, bosses, neighbors, and employees. Its universal appeal speaks to its well-rounded selection of items that can bring joy to a wide range of individuals.
In conclusion, the Unboxme Thank You Gift Box for Women, Warm + Cozy edition, is more than just a collection of items; it's a gesture of genuine appreciation and care. My mother-in-law's positive reaction is a testament to the success of this thoughtful gift. Highly recommended for anyone looking to express gratitude with a touch of warmth and coziness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2023
★★★★★ 5
Big hit present for mom.
Size: Classic Cozy Collection, Color: "Sending Hugs" Card
My wife of 59years loved this gift. She said it was such a thoughtful gift. She is a tea lover too. This was not flowers or clothes so big surprised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Very nice care basket!
Size: Classic Cozy Collection, Color: "Get Well Soon" Card
I really liked the quality of the mug. I gave this as a gift! I wanted to buy it for myself too! The tea and honey looked like good quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Perfect way to say I’m rooting for your wellness
Size: Classic Cozy Collection, Color: "Get Well Soon" Card
Sent to friend recovering at home from a heart attack who messaged me, “ Your incredibly thoughtful gift just arrived. Thank you so much sweet friend. It smells sooo good! Looking forward to slipping on the cozy socks and sipping a chai. I feel your love.” Thank you for offering a suitable way to express encouragement and comfort when words aren't quite enough.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 4
Nice little gift.
Size: Classic Cozy Collection, Color: "Happy Birthday" Card
It was a nice gift for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025