Synology
Synology DS223 DiskStation 40TB NAS Server
The Synology DS223 NAS delivers 40TB of centralized storage with powerful DSM software for seamless home backup and file sharing.
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Overview
Centralized Data Management Solution
The Synology DiskStation DS223 is a versatile NAS server designed for home data backup, file syncing, and sharing. Its compact size makes it easy to fit into any environment, and it's capable of handling demanding workloads. The NAS chassis comes in a sealed box. Hard drives and memory upgrades included separately, not installed, installation required.
Specifications:
- Brand: Synology
- Model: DS223
- CPU: RTD1619B 4-Core 1.7GHz
- Memory: 2GB DDR4 non-ECC
- Storage: 40TB (2 x 20TB) SATA 3.5" HDDs
- Ports: 1 x RJ-45 1GbE LAN Port, 3 x USB 3.2 Ports
- Operating System: Synology DSM Software
- Features: Security Advisor, Surveillance Station, Backup, Centralized Data Management, Ultra-Fast Data Transfer Speed, File Syncing and Sharing
Pros & Cons
👍 Pros
- 40TB raw capacity across two bays provides substantial storage for home media libraries and backups
- Synology DSM software is intuitive and feature-rich, offering backup, surveillance, and file sync out of the box
- Three USB 3.2 ports allow fast external drive connections for additional storage or one-touch backup
- Compact form factor fits easily on a desk or shelf without dominating the space
- Low power consumption compared to a full server, making it practical for always-on home use
👎 Cons
- Only one 1GbE LAN port limits maximum network transfer speeds to roughly 110MB/s
- 2GB of non-upgradable RAM may constrain performance when running multiple DSM packages simultaneously
- Two-bay design caps future storage expansion — no room to add a third or fourth drive
- The RTD1619B ARM processor lacks the power for on-the-fly video transcoding at higher resolutions
- Drives ship uninstalled, requiring manual setup that may be unfamiliar to first-time NAS users
Frequently Asked Questions
Do the hard drives come pre-installed in the Synology DS223?
No. The NAS chassis and the two 20TB hard drives ship separately. You will need to install the drives yourself, though the process is straightforward with the tool-less drive bays.
Can the DS223 be used as a media server for streaming video?
Yes. Synology DSM supports media server packages, though the RTD1619B processor handles software transcoding at a limited capacity. Direct-play streaming to compatible devices works well.
How much usable storage does the 40TB configuration actually provide?
With two 20TB drives in SHR or RAID 1 for redundancy, you get roughly 20TB of usable space. In JBOD or RAID 0 you get the full 40TB but with no drive-failure protection.
Is the 2GB of RAM sufficient, or should it be upgraded?
For typical home use — file sharing, backups, and light app hosting — 2GB is adequate. The DS223 does not officially support user-upgradable RAM, so this is effectively the fixed configuration.
Does this NAS support remote access when away from home?
Yes. Synology's QuickConnect service lets you access your files, photos, and applications remotely through a web browser or mobile app without complex router configuration.
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