FlashStation FS3400

Fueling IT transformation for small and midsize businesses

FS3400
FS3400
CPU

CPU

Intel® Xeon® D-1541 8 Core 2.1 GHz

Memory

Memory

16GB DDR4 ECC RDIMM, up to 128GB

Scalability

Scalability

Up to 72 x SAS/SATA drives2

Expandability

Expandability

1 x PCIe 3.0 for 25/40GbE NIC's expansion

Who is using Synology?

Watch how our solutions empower businesses around the world with limitless possibilities.

Mantra_Group

The storage array has been proven to be more than capable of going toe-to-toe with what would be classed as an enterprise-class all flash array for a fraction of the cost. Mark Pearce, IT Infrastructure Manager, Mantra Group

Learn more

Artemis Augenklinike

By using Synology systems within our hospital networks, we can enjoy secure, fast, and stable solutions for backup, file, and cloud services as well as virtual server environments. Artemis IT Department

Learn more

RAID F1
Compared with traditional RAID, RAID F1 distributes uneven workload to SSDs to prevent all drives from wearing out simultaneously.

Ultimate Backup Solution

FS3400 integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Fast clone

Active Backup for Business

Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.

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Hyper Backup

Hyper Backup

Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.

Learn more

Synology Drive

Synology Drive

Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.

Learn more

Active Backup for<br>Microsoft 365 / Google Workspace

Active Backup for
Microsoft 365 / Google Workspace

On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.

Google Workspace

office365

Flash volume deduplication

Remove duplicate data on all-flash arrays with volume-wide deduplication to greatly increase storage efficiency. Eliminate redundant data to save up to 65% in storage space use in applications like virtual desktop infrastructure, and virtual machine.3

Flash volume deduplication
vmware
windows2016
citrix
openstack

Enterprise Solutions Test & Buy

Do you have a requirement for high IO / low latency / highly available storage? Apply for a 30-day free trial of Synology’s award-winning enterprise storage in your own IT environment.

5-year warranty

5-year warranty

At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment. 

Powered by Synology DiskStation Manager

FlashStation FS3400

productFS3400front view photo
productFS3400back view photo
  • 1Power button and indicator
  • 2Beep off button
  • 3Drive status indicator
  • 4Drive tray
  • 5Power port
  • 6PSU indicator
  • 7PSU fan
  • 8Console port
  • 91GbE RJ-45 port
  • 1010GbE RJ-45 port
  • 11USB 3.0 port
  • 12PCIe expansion slot
  • 13Expansion port
  • 14Reset button

Notes:

  1. Performance figures may vary depending on environment, usage, and configuration.
  2. FS3400 can scale up to 72 drives with 2 x FX2421/48 drives with 2 x RX1217sas, sold separately.
  3. Flash volume deduplication is available on flash-only volumes comprised of compatible Synology SSD. Synology measured a data reduction ratio of over 3.15:1 based on 10 VMs configured for remote desktop with two operating systems and enterprise applications installed.
Hardware Specifications
CPU
CPU
CPU Model Intel Xeon D-1541
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 8-core 2.1 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine (AES-NI)
Memory
Memory
System Memory 16 GB DDR4 ECC RDIMM
Memory Module Pre-installed 16 GB (16 GB x 1)
Total Memory Slots 4
Maximum Memory Capacity 128 GB (32 GB x 4)
Notes
  • 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.
  • 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.
  • For more information on memory upgrade limitations, visit here.
  • For more information on the recommended memory configurations, visit here.
Storage
Storage
Drive Bays 24
Maximum Drive Bays with Expansion Unit 48 (RX1217sas x 2) / 72 (FX2421* x 2)
Compatible Drive Type* (See all supported drives)
  • 2.5" SAS HDD
  • 2.5" SAS SSD
  • 2.5" SATA SSD
Hot Swappable Drive
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.
External Ports
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
USB 3.2 Gen 1 Port* 2
Expansion Port 1
Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe
PCIe Expansion 1 x Gen3 x8 slot (x8 link)
File System
File System
Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT
Notes exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
Appearance
Appearance
Form Factor (RU) 2U
Size (Height x Width x Depth) 88 mm x 482 mm x 724 mm
Weight 14.9 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS-02)
Notes The rail kit is sold separately
Others
Others
System Fan 80 mm x 80 mm x 4 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 57 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 500 W
Redundant Power Supply
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 313.84 W (Access)
125.77 W (HDD Hibernation)
British Thermal Unit 1,070.86 BTU/hr (Access)
429.15 BTU/hr (HDD Hibernation)
Notes
  • Power consumption is measured when it is fully loaded with HGST 1.8TB HUC101818CS4204 hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Toshiba 600GB AL14SEB060N 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: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Temperature
Operating Temperature 0°C to 35°C (32°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
Certification
  • FCC
  • CE
  • BSMI
  • EAC
  • KC
  • UL
  • VCCI
  • RCM
Warranty
Warranty
5 Years
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
Environment
RoHS Compliant
Packaging Content
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1
Optional Accessories
Optional Accessories
Notes
  • It is required to use D4RD-2666-16G with identical memory modules of the same capacity and frequency. For more information, visit here.
  • Expansion Unit FX2421 can only be used with identical expansion units.
DSM Specifications
Maximum Single Volume Size*
  • 1 PB (64 GB memory required, for RAID 6 groups only)
  • 200 TB (32 GB memory required)
  • 108 TB
Maximum Internal Volume Number 256
SSD Read / Write Cache (White Paper)
SSD TRIM
RAID Group
Supported RAID Type
  • RAID F1
  • 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
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • RAID F1
  • JBOD
  • RAID 5
  • RAID 6
Global Hot Spare Supported RAID Type
  • RAID F1
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Notes
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
  • On Peta Volume enabled volumes, Snapshot Replication, SSD caching, shared folder encryption, and compression will not be available. Please refer to this article for more information on limitations.
  • Each internal volume (may consist of multiple drives) is expandable up to 108 TB (with memory less than 32 GB) or 200 TB (with memory equal to or greater than 32 GB).
File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 4,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) 10,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes
  • Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
  • During testing, the maximum number of SSDs supported by this model is installed in a RAID 5 configuration.
  • 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.
Maximum Local User Accounts 16,000
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 32
Hybrid Share Folder Number 30
Notes For more supported details, please check this article.
Synology High Availability
Syslog Events per Second 3,000
Virtualization
Virtualization
VMware vSphere with VAAI
Windows Server 2016
Windows Server 2019
Citrix Ready
OpenStack
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Google Chrome
  • Firefox
  • Microsoft Edge
  • Safari
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
Notes For an updated list of supported browser versions, check the DSM Technical Specifications.
Antivirus by McAfee (Trial)
Antivirus by McAfee (Trial)
Maximum Users 6,000
Maximum Number of Concurrent Users 500
Notes When applicable, systems are tested configured with maximum memory and set to allow the maximum number of connections.
Document Viewer
Document Viewer
Maximum iSCSI Target Number 256
Maximum LUN 512
LUN Clone/Snapshot, Windows ODX
Notes iSCSI Manager has been renamed to SAN Manager in DSM 7.0.
Free Email Accounts 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 1,100
Maximum Server Performance 4,471,000 emails per day, approx. 136 GB
Notes
  • FS series were installed with 12 SSDs in RAID F1 configuration.
  • 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).
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536
Maximum IP cam (Licenses required) 100 (including 2 Free License) (see all supported IP cameras)
Total FPS (H.264) 3000 FPS @ 720p (1280x720)
2800 FPS @ 1080p (1920x1080)
1200 FPS @ 3M (2048x1536)
700 FPS @ 5M (2591x1944)
500 FPS @ 4K (3840x2160)
Total FPS (H.265) 3000 FPS @ 720p (1280x720)
3000 FPS @ 1080p (1920x1080)
2400 FPS @ 3M (2048x1536)
1300 FPS @ 5M (2591x1944)
800 FPS @ 4K (3840x2160)
Total FPS (MJPEG) 1300 FPS @ 720p (1280x720)
700 FPS @ 1080p (1920x1080)
500 FPS @ 3M (2048x1536)
400 FPS @ 5M (2591x1944)
Notes
  • Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup.
  • Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present.
Recommended Number of Concurrent Sync Clients 2,000 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
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.
Maximum Users 3,400
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
Recommended Virtual Machine Instances 16 (Learn more)
Recommended Virtual DSM Number (Licenses required) 16 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
Maximum Connections 60

Notes:

  1. Model specifications are subject to change without prior notice.
  2. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.