Synology FlashStation FS3400 Rackmount 2U 24-Bays (2.5″ disk tray, Expandable upto 72-Bays) – FS3400
FlashStation FS3400
Fueling IT transformation for small and midsize businesses
Overview
Features
Lightning speed with lower TCO
Featuring an 8-core CPU and 16GB ECC RDIMM memory, FS3400 provides more than 137,000 4K random write IOPS, meeting the needs for real-time analytics, online transaction processing, and mission-critical database services.1 With built-in 10GbE Ethernet, PCIe expansion, and the support of various SAS and SATA drives, FS3400 delivers flexible and economical all-flash server deployment on demand.
CPU
Intel® Xeon® D-1541 8 Core 2.1 GHz
Memory
16GB DDR4 ECC RDIMM, up to 128GB
Scalability
Up to 72 x SAS/SATA drives2
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.
RAID F1
Due to the peculiarities of SSD and RAID technology, a common challenge lies in how to prevent all of the drives from failing at the same time because of the evenly distributed workload. RAID F1 alleviates this problem with a specially designed algorithm to unevenly distribute workload to drives, enhancing the resilience of the storage pool and ensuring your data remains safe.
See the white paper for more technical details regarding 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.
Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
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.
Synology Drive
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Active Backup for
Microsoft 365 / Google Workspace
Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
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
Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
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
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Active Backup Suite
Integrated, modern, and license-free backup & instant recovery solution for VMware, Windows, Microsoft 365, and Google Workspace.
Hyper Backup
Store multiple backup versions with block-level incremental data backup and cross-version deduplication.
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Virtual Machine Manager
Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
FlashStation FS3400
- 1 Power button and indicator
- 2 Beep off button
- 3 Drive status indicator
- 4 Drive tray
- 5 Power port
- 6 PSU indicator
- 7 PSU fan
- 8 Console port
- 9 1GbE RJ-45 port
- 10 10GbE RJ-45 port
- 11 USB 3.0 port
- 12 PCIe expansion slot
- 13 Expansion port
- 14 Reset button
Detailed Tech Specification
Hardware Specs
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CPU
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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) | Yes | |
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Memory
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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 |
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Storage
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Drive Bays | 24 |
| Maximum Drive Bays with Expansion Unit | 48 (RX1217sas x 2) / 72 (FX2421* x 2) | |
| Compatible Drive Type* (See all supported drives) |
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| 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. | |
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External Ports
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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. | |
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PCIe
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PCIe Expansion | 1 x Gen3 x8 slot (x8 link) |
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File System
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Internal Drives |
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| External Drives |
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| 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. | |
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Appearance
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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 | |
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Others
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System Fan | 80 mm x 80 mm x 4 pcs |
| Fan Speed Mode |
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| Easy Replacement System Fan | Yes | |
| Power Recovery | Yes | |
| Noise Level* | 57 dB(A) | |
| Scheduled Power On / Off | Yes | |
| Wake on LAN / WAN | Yes | |
| Power Supply Unit / Adapter | 500 W | |
| Redundant Power Supply | Yes | |
| 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) |
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| British Thermal Unit | 1,070.86 BTU/hr (Access) 429.15 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature
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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 | |
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Certification
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Warranty
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5 Years | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
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Environment
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RoHS Compliant | |
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Packaging Content
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Optional Accessories
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Software Specs
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DSM Specifications
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| Maximum Single Volume Size* |
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| Maximum Internal Volume Number | 256 | |
| SSD Read / Write Cache (White Paper) | Yes | |
| SSD TRIM | Yes | |
| RAID Group | Yes | |
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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| Notes |
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| 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 | Yes | |
| NFS Kerberos Authentication | Yes | |
| Notes |
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| 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 | Yes | |
| Syslog Events per Second | 3,000 | |
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Virtualization
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VMware vSphere with VAAI | Yes |
| Windows Server 2016 | Yes | |
| Windows Server 2019 | Yes | |
| Citrix Ready | Yes | |
| OpenStack | Yes | |
| Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | |
| Supported Browsers |
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| 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. | |
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Add-on Packages view the complete package list
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Antivirus by McAfee (Trial)
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Yes | |
| Yes | ||
| 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. | |
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Document Viewer
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Yes | |
| Maximum iSCSI Target Number | 256 | |
| Maximum LUN | 512 | |
| LUN Clone/Snapshot, Windows ODX | Yes | |
| 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 |
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| 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 (1280×720) 2800 FPS @ 1080p (1920×1080) 1200 FPS @ 3M (2048×1536) 700 FPS @ 5M (2591×1944) 500 FPS @ 4K (3840×2160) |
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| Total FPS (H.265) | 3000 FPS @ 720p (1280×720) 3000 FPS @ 1080p (1920×1080) 2400 FPS @ 3M (2048×1536) 1300 FPS @ 5M (2591×1944) 800 FPS @ 4K (3840×2160) |
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| Total FPS (MJPEG) | 1300 FPS @ 720p (1280×720) 700 FPS @ 1080p (1920×1080) 500 FPS @ 3M (2048×1536) 400 FPS @ 5M (2591×1944) |
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| Notes |
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| 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 |
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| Maximum Users | 3,400 | |
| Notes |
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| 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 | |
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