Synology DiskStation DS620slim SAN/NAS Storage System

DS620slim is a mini 6-bay NAS with a stylish chassis design, perfectly blending in modern workplaces or apartments. Supporting near-instantaneous snapshot technology, DS620slim is an all-around file management solution that fulfills professionals’ needs of advanced data protection.


Remain classic while shrinking footprint:
- The mini 6-bay design keeps DS620slim classic and saves deployment space. With six 2.5´´ drive support, DS620slim is able to boost performance by installing SSDs.

Compact Design:
- Mini design with the dimensions of 121 x 151 x 175 mm, flexible to fit in anywhere

RAID Flexibility:
- Flexible in a varety of RAID configurations to realize maximum 30TB raw capacity or better data protection with RAID 5/6/10

SSD Cache Support:
- Further enhance storage performance with SSD read/write cache while still having abundant drive bays for data storage

Btrfs: Next generation storage efficiency:
- The Btrfs file system introduces cutting-edge storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.

- Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
- Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots
- File or folder level data restoration makes data recovery fast and flexible
- Automatic file self-healing detects and recovers corrupted files without user intervention

Ultimate file management and sharing:
- File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS620slim supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

Access and sync your files seamlessly:
- Synology Drive provides a built-in universal portal to access your data anytime and anywhere, and synchronize all your files across platforms, including Windows, macOS, Linux, Android, and iOS. Learn more
- Sync files on demand: Save the storage space and network bandwidth of your PC.
- Go back in time: Easily retrieve previous versions of your shared files.
- Back up your data: Protect your files with scheduled backups or in real-time.

Stream content to your TV:
- Turn your Synology NAS into a home media hub and stream your digital contents to computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.

Public Cloud Integration:
- Back up and synchronize data easily between public cloud accounts and your NAS.
- Status indicator
- Alert indicator
- Power button
- LAN indicator
- Drive status indicator
- Drive tray
- System fan
- Power port
- 1GbE RJ-45 port
- Kensington Security Slot
- USB 3.0 port
- Reset button


Specifications:

- Hardware Specs:

- CPU Model: Intel Celeron J3355
- CPU Quantity: 1
- CPU Architecture: 64-bit
- CPU Frequency: 2-core 2.0 (base) / 2.5 (burst) GHz
- Hardware Encryption Engine: (AES-NI)Yes
- Hardware Transcoding Engine: H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30

Memory:
- System Memory: 2 GB DDR3L non-ECC SODIMM
- Memory Module: Pre-installed 2 GB (2 GB x 1)
- Total Memory Slots: 2
- Maximum Memory Capacity: 6 GB (2 GB + 4 GB)

Notes:
- Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
- Synology reserves the right to replace memory modules with the same or higher frequency based on supplier´s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.

Storage:
- Drive Bays: 6
- Compatible Drive Type* (See all supported drives):
- 2.5´´ SATA HDD
- 2.5´´ SATA SSD
- Maximum Single Volume Size: 108 TB
- Hot Swappable Drive: Yes

Notes:
- Compatible drive type´´ indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
- Each internal volume (may consist of multiple drives) is expandable up to 108TB.

External Ports:
- RJ-45 1GbE LAN Port: 2 (with Link Aggregation / Failover support)
- USB 3.2 Gen 1 Port: 2
- Notes: The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.

File System:
- Internal Drives:
- Btrfs
- EXT4
- External Drives:
- Btrfs
- EXT4
- EXT3
- FAT
- NTFS
- HFS+
- exFAT*
- Notes: exFAT Access is purchased separately in Package Center.

Appearance:
- Size (Height x Width x Depth): 121 mm x 151 mm x 175 mm
- Weight: 1.4 kg

Others:
- System Fan: 80 mm x 80 mm x 1 pcs
- Fan Speed Mode:
- Full-Speed Mode
- Cool Mode
- Quiet Mode

Easy Replacement System Fan: Yes
- Brightness Adjustable Front LED Indicators: Yes
- Power Recovery: Yes
- Noise Level: 20.5 dB(A)
- Scheduled Power On / Off: Yes
- Wake on LAN / WAN: Yes
- Power Supply Unit / Adapter: 65 W
- AC Input Power Voltage: 100 V to 240 V AC
- Power Frequency: 50/60 Hz, Single Phase
- Power Consumption: 34.88 W (Access), 7.59 W (HDD Hibernation)
- British Thermal Unit: 119.1 BTU/hr (Access), 25.92 BTU/hr (HDD Hibernation)

Notes:
- Power consumption is measured when it is fully loaded with Western Digital 1TB WD10JFCX hard drive(s).
- Noise Level Testing Environment: Fully loaded with WD 1TB WD10JFCX hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 17.2 dB(A); Temperature: 23.6˚C; Humidity: 58.2%.

Temperature:
- Operating Temperature: 5°C to 40°C (40°F to 104°F)
- Storage Temperature: -20°C to 60°C (-5°F to 140°F)
- Relative Humidity: 5% to 95% RH

Certification:
- FCC
- CE
- BSMI
- EAC
- VCCI
- RCM
- Notes: The warranty period starts from the purchase date as stated on your purchase receipt.
- Environment: RoHS Compliant

Packaging Content:
- Main Unit X 1
- AC Power Adapter X 1
- AC Power Cord X 1
- RJ-45 LAN Cable X 2
- Quick Installation Guide X 1

Optional Accessories:
- DDR3 non-ECC SODIMM: D3NS1866L-4G
- 2.5´´ SATA SSD: SAT5200
- VisualStation: VS960HD/VS360HD
- Surveillance Device License Pack


Software Specs:
Storage Management:
- Maximum Internal Volume Number: 64
- SSD Read / Write Cache (White Paper): Yes
- SSD TRIM: Yes

Supported RAID Type:
- Synology Hybrid RAID
- Basic
- JBOD
- RAID 0
- RAID 1
- RAID 5
- RAID 6
- RAID 10

RAID Migration:
- Basic to RAID 1
- Basic to RAID 5
- RAID 1 to RAID 5
- RAID 5 to RAID 6

Volume Expansion with Larger HDDs:
- Synology Hybrid RAID
- RAID 1
- RAID 5
- RAID 6
- RAID 10

Volume Expansion by Adding a HDD:
- Synology Hybrid RAID
- JBOD
- RAID 5
- RAID 6

Global Hot Spare Supported RAID Type:
- Synology Hybrid RAID
- RAID 1
- RAID 5
- RAID 6
- RAID 10

File Services:
- File Protocol: SMB/AFP/NFS/FTP/WebDAV
- Maximum Concurrent SMB/AFP/FTP Connections: 500
- Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion): 1,500
- Windows Access Control List (ACL) Integration: Yes
- NFS Kerberos Authentication: Yes

Notes:
- Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
- The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.

Account & Shared Folder:
- Maximum Local User Accounts: 2,048
- Maximum Local Groups: 256
- Maximum Shared Folder: 256
- Maximum Shared Folder Sync Tasks: 8

High Availability:
- Synology High Availability: Yes

Log Center:
- Syslog Events per Second: 400

Virtualization:
- VMware vSphere with VAAI: Yes
- Windows Server 2016: Yes
- Windows Server 2019: Yes
- Citrix Ready: Yes
- OpenStack: Yes

General Specifications:
- Networking Protocols: SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
- Supported Browsers:
- Google Chrome
- Firefox
- Microsoft Edge
- Internet Explorer 11 onwards
- Safari 13 onwards
- Safari (iOS 13.0 onwards)
- Google Chrome (Android 11.0 onwards)
- Supported Language: English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Antivirus by McAfee (Trial): Yes
- Central Management System: Yes
- Synology Chat:
- Maximum Users: 1,000

Notes:
- The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
- For tested models with expandable memory, the maximum amount of RAM was installed.

- Document Viewer: Yes

Download Station:
Maximum Concurrent Download Tasks: 80
exFAT Access (Optional): Yes

iSCSI Manager:
- Maximum iSCSI Target Number: 128
- Maximum iSCSI LUN: 256
- iSCSI LUN Clone/Snapshot, Windows ODX: Yes

- Synology MailPlus / MailPlus Server:
- Free Email Accounts: 5 (Licenses required for additional accounts)
- Maximum Number of Concurrent Users: 50

Notes:
- Models with more than 4 bays were installed with two SSDs for SSD cache.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
- Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server:
- DLNA Compliance: Yes
- Moments: Yes
- Facial Recognition: Yes
- Subject Recognition: Yes
- Auto Color & Rotate: yes
- Moments Select: Yes

Snapshot Replication:
Maximum Snapshots per Shared Folder: 1,024
Maximum of System Snapshots: 65,536

Surveillance Station:
- Maximum IP cam (Licenses required): 25 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264:
- 750 FPS @ 720p (1280x720)
- 600 FPS @ 1080p (1920x1080)
- 350 FPS @ 3M (2048x1536)
- 250 FPS @ 5M (2591x1944)
- 120 FPS @ 4K (3840x2160)

Total FPS (H.265):
- 750 FPS @ 720p (1280x720)
- 750 FPS @ 1080p (1920x1080)
- 450 FPS @ 3M (2048x1536)
- 250 FPS @ 5M (2591x1944)
- 200 FPS @ 4K (3840x2160)

Total FPS (MJPEG):
- 450 FPS @ 720p (1280x720)
- 250 FPS @ 1080p (1920x1080)
- 160 FPS @ 3M (2048x1536)
- 130 FPS @ 5M (2591x1944)

Notes:
- Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
- The maximum channel number also includes devices installed on Virtual DSM.
- Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).

Synology Drive:
- Recommended Number of Hosted Files: 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
- Recommended Number of Concurrent Sync Clients: 450 (the number of connections that can be maintained when the recommended number of hosted files was reached)

Notes:
- Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
- Utilizing SSD cache can significantly improve performance.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office:
- Maximum Users: 400

Notes:
- Multiple files were opened for testing and each file was edited by 30 users simultaneously.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

- Video Station: Yes
- Video Transcoding: 4K Group 1
- Maximum Transcoding Channel Number: 2 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or
- 2 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1

Virtual Machine Manager:
- Recommended Virtual Machine Instances: 2
- Recommended Virtual DSM Number (Licenses required): 2 (including 1 Free License)
- Notes: The specifications vary depending on system configuration and memory size.

VPN Server:
- Maximum Connections: 30

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