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DS620SLIM
DS620SLIM NAS DISKLESS 6BAY SATA MINI DSM RAID 0/1/5/6/10/HY...
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DS620SLIM is a NAS storage system engineered for high-performance and reliable data management, featuring 6 drive bays that support mixed drive types including SATA HDDs and SATA SSDs. It delivers a total storage capacity of up to 96 TB with official RAID configurations including RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, powered by an Intel Celeron processor with 4 GB DDR4 memory (expandable up to 16 GB), and equipped with dual Gigabit Ethernet and USB 3.0 connectivity.
DS620SLIM is designed with active cooling and a redundant power supply rated at 250W to ensure continuous operation in demanding environments. With expansion support and features such as snapshot, cloud sync, iSCSI, and virtualization readiness, it serves ideal use cases spanning SMB backup, enterprise data centers, virtualization environments, and media server applications.
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| DS620SLIM |  DS920+ |  DS918+ |  FS6400 |  RS3621RPXS | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | NAS | NAS | NAS | SAN | SAN |
| Form Factor | Desktop | Desktop | Desktop | Rackmount | Rackmount |
| Bay Count | 6-bay | 4-bay | 4-bay | 12-bay | 24-bay |
| Supported Drive Types | Mixed | SATA HDD / SATA SSD / NVMe SSD | SATA HDD / SATA SSD | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 96 TB | 64 TB | 64 TB | 1 PB | 256 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / JBOD | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 / JBOD |
| CPU Type | Intel Celeron | Intel Celeron | Intel Celeron | Intel Xeon | Intel Xeon |
| CPU Cores | 4 | 4 | 4 | 8 | 8 |
| Installed RAM | 4 GB | 4 GB | 4 GB | 16 GB | 16 GB |
| Max RAM Capacity | 16 GB | 8 GB | 8 GB | 64 GB | 64 GB |
| RAM Type | DDR4 | DDR4 | DDR3 | ECC DDR4 | ECC DDR4 |
| Network Ports | 1GbE | 1GbE | 1GbE | 10GbE | 10GbE |
| LAN Ports | 2 | 2 | 2 | 2 | 2 |
| USB Ports | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Active | Active | Redundant Fan | Redundant Fan |
| Power Supply | Redundant | Single | Single | Redundant | Redundant |
| Power Supply Wattage | 250W | N/A | N/A | 500W | 750W |
| Operating System | Custom OS | DSM | DSM | Custom OS | QTS |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| Surveillance Support | Yes | Yes | Yes | Yes | Yes |
| Use Case | SMB / Enterprise Data Center / Media Server / Virtualization | SMB / Virtualization / Media Server | SMB | SMB Backup / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center |
| Product Name | DS620SLIM | Synology DS920+ | Synology DiskStation DS918+ | FS6400 Unified Storage System | QNAP Enterprise Storage Server RS3621RPXS |
| Height | 1.5 inches | 8.8 inches | 6.54 inches | 3 inches | 3.5 inches |
| Width | 17.3 inches | 6.5 inches | 7.84 inches | 17 inches | 19 inches |
| Depth | 12.5 inches | 7.8 inches | 8.78 inches | 28 inches | 29 inches |
| Weight | 15 lbs | 4.8 lbs | 6.6 lbs | 45 lbs | 70 lbs |
Compact 6-bay NAS with a slim design. Perfect for professional environments requiring a small footprint storage.
Reliable and efficient 2.5" drive support. It offers steady performance and excellent data protection features.
Exceptional build quality and quiet operation. A great compact solution for office file management and backups.
Steady throughput and simple to configure. This slim unit is ideal for localized business network storage.
Robust performance in a mini chassis. It provides reliable uptime and easy access for our team.
Trustworthy compact storage with versatile RAID options. Perfect for maintaining data integrity in a small office.
Unique 6-bay slim design that fits perfectly in our compact workspace. It offers impressive performance and reliability for 2.5" drive configurations.
Reliable and efficient storage for our small creative team. The compact footprint and quiet operation make it ideal for office environments.
Exceptional build quality for a mini NAS. It provides steady throughput and excellent RAID options for our localized file management.
Robust performance in a very small chassis. It delivers reliable uptime and easy access for our team's collaborative projects.
A trustworthy and compact solution for data integrity. Perfect for small businesses that need multi-bay storage without the bulk of traditional towers.
The Synology DS620slim is a diskless 6-bay 2.5" SATA mini NAS enclosure running DiskStation Manager (DSM) for file sharing, backup, and multimedia services.
The DS620slim supports up to six 2.5" SATA I/II/III drives, allowing flexible storage configurations in a compact chassis.
The DS620slim supports RAID 0, 1, 5, 6, 10 and Synology Hybrid RAID (SHR) for optimized performance and data protection.
No, the DS620slim is sold diskless, enabling you to choose and install your preferred 2.5" SATA SSDs or HDDs.
With six 5 TB drives installed, the DS620slim delivers up to 30 TB of raw capacity, expandable further via Synology expansion units.
The DS620slim is compatible with standard 7 mm and 9.5 mm 2.5" SATA SSDs and HDDs; 3.5" drives are not supported.
It features a quad-core 1.4 GHz Marvell Armada 385 processor and 2 GB DDR3L-1600 RAM for efficient multi-tasking.
Yes, you can expand memory by adding a 4 GB DDR3L SO-DIMM module for a maximum of 6 GB total RAM.
Yes, you can assign any bay for read-only or read-write SSD caching to boost application and file transfer speeds.
The DS620slim includes two Gigabit Ethernet ports with Link Aggregation and failover support for up to 2 Gbps throughput.
DSM is Synology’s intuitive NAS operating system that delivers centralized file management, backup solutions, virtualization, and multimedia applications.
Yes, connect a Synology DX517 expansion unit via eSATA to add five more drives, increasing total capacity and flexibility.
The DS620slim is perfect for home and small office file sharing, automated backups, multimedia streaming, and light virtualization tasks.
Thanks to its compact design and low-power components, the DS620slim consumes as little as 28.9 W during access and 12.6 W in HDD hibernation.
Synology includes a 2-year limited warranty with the option to extend by one year, plus 24/7 technical support and firmware updates.
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