What types of drives can I use with this storage system?

You can use 3.5" SATA HDD, 2.5" SATA HDD, and 2.5" SATA SSD with this storage system.

What is the maximum storage capacity of this device?

The maximum storage capacity of this device is 72TB.

What are the power requirements and consumption of the device?

The power requirements of the device are 250W, 100V to 240V AC, 50/60 Hz, Single Phase. The power consumption is 43.92 W during access and 28.43 W during HDD hibernation.

What are the physical dimensions and weight of this unit?

The physical dimensions of the unit are 9.30 inches x 9.80 inches x 6.50 inches, and it weighs 10.90 lbs.

Is there a limit to the memory that can be installed in the unit?

The maximum memory capacity that can be installed in the unit is 32GB.

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Synology 4 Bay NVR Deep Learning Video Analytics DVA3221 (Diskless)

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4-Bay
Usage Backup & stream media through personal cloud
Diskless System
Intel Atom C3538 Quad Core 2.1 GHz Processor
4 x 10/100/1000M
3 x USB3.0

Specs

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Learn more about the Synology Inc. DVA3221

Model
Brand	Synology
Model	DVA3221
Type	Desktop NAS

Interfaces
Ports	2 x eSATA / 3 x USB 3.0 / 4 x 1GbE
Port RJ-45	4 x 10/100/1000M
Port USB	3 x USB3.0
Port eSATA	2 x eSATA
Port Others	1 x COM Port
HDD Interface	4 x SATA (4 x Bay)

Configuration
Form Factor	4-Bay
Processor	Intel Atom C3538 Quad Core 2.1 GHz
Installed Memory	8GB DDR4
Max Memory Capacity	32GB
Memory Slot	2 x DDR4 SODIMM

Hard Drive Performance
Included HDD Capacity	Diskless System
Max Capacity	72TB
Drive Compatibility	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD

Power
Power	250W, 100V to 240V AC, 50/60 Hz, Single Phase
Power Consumption	43.92 W (Access) 28.43 W (HDD Hibernation)

Environmental
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)
Humidity	5-95% R.H

Features
Usage	Backup & stream media through personal cloud

Dimensions & Weight
Dimensions	9.30" x 9.80" x 6.50"
Weight	10.90 lbs.

Package Contents
Package Contents	1 x Main Unit 1 x Accessory Pack 1 x AC Power Cord 2 x RJ-45 LAN Cable 1 x Quick Installation Guide

Additional Information
First Listed on Newegg	August 13, 2025

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

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Return Policies

Return for refund within: 30 days
Return for replacement within: non-replaceable
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Item#: 9SIAJA1KJY2824