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Synology 5 Bay Diskstation Ds1522 Comparison - April 2026
| 1 Best Choice  9.9Exceptional | 2 Best Value  9.7Exceptional | 3  9.6Exceptional |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelSynology 8-Bay DiskStation DS1823xs+ (Diskless) | Model Synology 4-Bay DiskStation DS423 (Diskless) | Model Synology 5-Bay Expansion Unit DX525 (Diskless) |
BrandSynology | Brand Synology | Brand Synology |
Reviews | Reviews | Reviews - |
Tech Specs | ||
product dimensions 18.11 x 14.57 x 12.6 inches | product dimensions 9 x 6.6 x 7.24 inches | product dimensions - |
item weight 16.42 pounds | item weight 4.87 pounds | item weight - |
item dimensions lxwxh 18.11 x 14.57 x 12.6 inches | item dimensions lxwxh 9 x 6.6 x 7.24 inches | item dimensions lxwxh - |
Available On   | Available On | Available On  |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Synology13% OffSynology 8-Bay DiskStation DS1823xs+ (Diskless)
Why we love it
Easily expandable storage options.
Comprehensive data protection features.
Highly reliable with great support.
Main highlights- Protect your IT infrastructure with license free solutions for backup, replication, and recovery
- Maximize uptime with hot-swappable drives, online volume expansion, and Synology High Availability clustering
- Check the product specification page for the software or application you want to use
- Check Synology knowledge center or YouTube channel for help on product setup and additional information
- Attach up to 2 Synology DX517 Expansion Units for up to 18 drive bays
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9.7
2Synology
Synology 4-Bay DiskStation DS423 (Diskless)
Why we love it
Secure remote access
Backup snapshots
Monitor protect home/biz
Main highlights- Versatile video surveillance - Protect your home or business with intuitive monitoring, archiving, and analysis tools for up to 30 IP cameras (need to purchase camera license separetly)
- Secure private cloud - Safely access and share files and media from anywhere, and keep friends, partners, or collaborators on the same page
- Comprehensive data protection - Back up your media and documents to multiple destinations, and leverage snapshots to protect against malware
- Check Synology knowledge center or YouTube channel for help on product setup and additional information
- 2-year warranty
-
9.6
3Synology
Synology 5-Bay Expansion Unit DX525 (Diskless)
Why we love it
Quad core processor
AES NI hardware encryption
Btrfs file system support
Main highlights- Supports drives on the model's official compatibility list
- Plug-and-play compatibility and support for hot-swapping drives
- Configure new storage in minutes with Synology DSM's unified toolsA
- Backed by Synology's 3-year limited hardware warranty
- Add 5 additional 3.5"/2.5" SATA HDD/SSD to your DiskStation.
Our ranking system
At bestchoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
