



SYNOLOGY DS1621+ 6-BAY DISKSTATION
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The SYNOLOGY DS1621+ 6-BAY DISKSTATION is a powerful and versatile network-attached storage solution designed for demanding environments. Offering enhanced performance, robust data protection, and flexible scalability, it provides an ideal platform for managing and securing your critical data.
Key Features at a Glance
- Experience 174% higher 4K random read IOPS compared to its predecessor.
- Achieve 76% faster sequential write speeds compared to its predecessor.
- Integrate dual built-in M.2 slots for NVMe SSD cache, boosting HDD arrays by 20x or more without occupying drive bays.
- Scale storage on-demand up to 16 drives using two DX517 expansion units.
- Protect critical data with comprehensive solutions including Synology Active Backup suite, Hyper Backup, and Snapshot Replication.
Unleash Superior Performance
The DS1621+ delivers remarkable speed enhancements, boasting 174% higher 4K random read IOPS and 76% faster sequential write speeds when compared to previous models. This ensures quicker access and more efficient handling of your data-intensive tasks.
Boost Storage Responsiveness with NVMe Cache
Turbocharge your traditional HDD arrays significantly by utilizing the dual built-in M.2 slots for NVMe SSD cache. This feature can improve performance by 20 times or more, optimizing your storage system's responsiveness without using valuable drive bays.
Flexible and Expandable Storage Capacity
Designed for growth, the DS1621+ allows you to scale your storage capacity on-demand. Easily expand your system up to a total of 16 drives by connecting two DX517 expansion units, providing ample room for your evolving data needs.
Robust Data Protection for Business Continuity
Safeguard your valuable information with a suite of integrated backup solutions. The Synology Active Backup suite, Hyper Backup, and Snapshot Replication enable comprehensive data protection, allowing you to back up critical data to and from various sources including public clouds, Windows PCs, servers, virtual machines, and the NAS itself.
Technical Specifications
| Brand | Synology |
|---|---|
| Manufacturer | Synology |
| Model | DS1621+ |
| Product Dimensions | 5.08 x 25.4 x 6.86 cm; 5.1 kg |
| Item model number | DS1621+ |
| RAM Size | 2 GB |
| Computer Memory Type | SDRAM |
| Digital storage capacity | 4 GB |
| Hardware Interface | Solid State Drive |
| Compatible Devices | Server |
| Special Features | Compact |
| Standing screen display size | 24 Inches |
| Batteries Included | No |
| Batteries Required | No |
| Data Transfer Rate | 48 Gigabits Per Second |
| Material | Metal |
| Form Factor | M.2 |
| Manufacturer | Synology |
| Item Weight | 5 kg 100 g |
Frequently Asked Questions
Q: What are the key performance improvements of the SYNOLOGY DS1621+?
A: The DS1621+ offers 174% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor.
Q: Can the storage capacity of the DS1621+ be expanded?
A: Yes, you can scale the system up to 16 drives on-demand by adding two DX517 expansion units.
Q: What data backup and protection tools are available with this DiskStation?
A: The DS1621+ includes the Synology Active Backup suite, Hyper Backup, and Snapshot Replication for comprehensive data protection to various destinations.

