SA3400D

SA3400D

Keep services online with efficient high-availability storage

Product Image SA3400D
Product Image SA3400D
Trusted by professionals across all industries.
Synology is a solid storage with great capabilities out of the box. The licensing model of all-inclusive software adds great value to the product.
Information Technology Manager - Government
Synology provides a single-platform solution for all of our backup needs in a cost effective manner.
Director of Enterprise Infrastructure - Education
Synology's DSM is a masterpiece, designed to be user-friendly even for non-IT professionals, helping us become less reliant on out IT teams.
Director Media Services - Media
Working with Synology Products has just been the best. Its an all in one product that can cater for all aspects of Storage.
Senior Systems Engineer - Media
The Synology brand is very feature-rich and unbeatable in terms of price/performance in the NAS segment. Our current testing was primarily focused on backup, which delivered reliability alongside adequate performance.
CEO - IT Services
Smooth storage server setup with intuitive OS and reliable automation features
Server Administrator - Retail
High-availability file and block storage solutionDownload Datasheet Accessible and convenientMaintain data availability with an active-passive high availability dual-controller moduleVersatile applicationsManage, distribute, and protect data, back up endpoints, and guard physical premisesFast and efficientOver 3,500/2,900 MB/s seq. read/write throughput and over 500 TB maximum storage capacity

Built-in High Availability

Keep file sharing services, block storage, backups, and other office applications online with automatic minute-level failover. Defend against operational disruptions with two independent and hot-swappable controllers operating in an active-passive configuration.

Made for demanding environments

The SA3400D is engineered to provide outstanding performance in both NAS and SAN storage roles. Its throughput and random I/O performance support efficient SMB and NFS file serving as well as a range of iSCSI and Fibre Channel block storage applications.

The SA3400D achieves over 3,500 MB/s read and 2,900 MB/s write speeds with SMB. For iSCSI, it delivers 340,000 IOPS for 4K random reads and 130,000 IOPS for 4K random writes using SSDs.

Consolidate your data infrastructure

Manage, protect, and share data with versatile business solutions. Empower team collaboration, sandbox applications, and provide VM storage on a unified platform.

Private cloud managementEfficient and secure folder sharingView, edit, and share data through desktop, mobile, and web-based applications. Enable user access to shared folders over SMB or NFS and leverage Microsoft AD or LDAP integration for efficient user access and permissions management. Learn moreEfficient cross-site file syncingSync or distribute data between servers with Synology Drive ShareSync to provide teams around the world with the latest work files. Or create a global file system spanning C2 Storage cloud storage and multiple Synology systems with Hybrid Share.Learn more
Built-in data protectionBack up PCs, servers, SaaS accounts, and VMsConsolidate and automate backup tasks for PCs, servers, VMs, SaaS applications, and more with Active Backup Suite. Manage all backup tasks from a central console and quickly restore specific files, entire devices, virtual services, and employee SaaS accounts to keep your business running. Learn moreCreate off-site backups for shared folders, LUNs, and moreBack up shared folders, LUNs, applications, and configurations from your Synology server onto a secondary server, an external device, or C2 Storage via Hyper Backup. Schedule backup tasks, keep the versions you need with flexible retention policies, and reduce backup sizes with built-in data deduplication. Or minimize lost data with Snapshot Replication, creating point-in-time snapshots at intervals as short as 5 minutes.
Business productivity solutionsBoost team productivity with collaborative toolsImprove collaboration in the workplace with Synology productivity solutions. Create, edit, and share documents across teams in real time with Synology Office. Host an on-premises mail server with MailPlus, providing web-based email access while retaining full data ownership. And stay connected via secure one-on-one chats, public channels, encrypted private channels, and group conversations in Synology Chat. Learn moreSandbox and instantly restore critical servicesInstantly restore backed up physical servers and VMs, or test new applications in a contained environment with Synology Virtual Machine Manager — a hypervisor for Windows®, Linux®, and Virtual DSM with built-in snapshots and version rollback functionality. Or host Docker containers on Synology Container Manager and benefit from easy management, automatic update notifications, and Compose support. Learn moreSupports industry-leading virtualization platformsThe SA3400D provides efficient storage for virtualized environments, with full certification for VMware® vSphere™, Citrix® XenServer™, and OpenStack. Synology Storage Console provides direct management from VMware® or Windows platforms, while VMware VAAI and Microsoft ODX support help offload and speed up data transfer operations. Learn more

Flexible options to meet changing needs

Flexibly scale storage capacity, optimize I/O performance, and meet different network needs with a range of expansion options.

Add storage capacity on demand

Scale server capacity up to 576 TB when your data storage needs increase by adding two 12-bay RXD1219sas expansion units.

Boost network and I/O performance

Add 10/25GbE connectivity with optional add-in cards. Create all-flash storage volumes with SAS SSD for lightening-fast I/O, or boost IOPS and cut down latency on HDD volumes by creating SAS SSD read/write cache volumes.

The SA3400D has a raw capacity of up to 576 TB with expansion units.
The SA3400D can be configured with 25GbE networking.
The SA3400D features up to 218,000 read and 92,000 write speeds when equipped with SSD cache.

Performance backed by Synology drives

Engineered to handle intensive workloads, Synology hard drives consistently deliver top-grade performance.

HDD
Enterprise Series 3.5" SAS

Synology has you covered

The SA3400D is backed by Synology's 5-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continuous, high-quality performance. Learn more

Hardware Overview
  • 1Power Button and Indicator
  • 2High Availability Status Indicator
  • 3Alert Indicator
  • 4Mute Button
  • 5Drive Status Indicators
  • 6Drive Trays
  • 7Rail Kit Release Tabs
  • 8Power Ports
  • 9PSU Indicators
  • 10PSU Fans
  • 11PCI Express Expansion Slots
  • 12Console Ports
  • 131GbE RJ-45 Ports
  • 1410GbE RJ-45 Ports
  • 15Expansion Ports
  • 16Reset Buttons
  • 17Remove Indicators
  • 18Alert Indicators
  • 19Status Indicators
  • 20Power Indicators
  • First Product Image
  • Second Product Image
  • Third Product Image
  • Fourth Product Image
  • Fifth Product Image
  • Sixth Product Image
Notes:Gartner® and Peer Insights™ are trademarks of Gartner, Inc. and/or its affiliates. All rights reserved. Gartner Peer Insights content consists of the opinions of individual end users based on their own experiences, and should not be construed as statements of fact, nor do they represent the views of Gartner or its affiliates. Gartner does not endorse any vendor, product or service depicted in this content nor makes any warranties, expressed or implied, with respect to this content, about its accuracy or completeness, including any warranties of merchantability or fitness for a particular purpose.Performance figures are obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and configuration. See performance charts for more information.Volumes up to 108 TB are supported with the default installed memory. Volumes up to 200 TB can be created if the memory is upgraded to 32 GB. Learn more about maximum volume sizes.C2 Storage for Hyper Backup and Hybrid Share requires purchase of an annual or monthly subscription. A free trial is available for each newly registered device.Five MailPlus email accounts are included. Additional email accounts can be added with the purchase of Synology MailPlus License Packs. Learn more Certain advanced features require Virtual Machine Manager Pro. One Virtual DSM license is included. Additional Virtual DSM instances require the purchase of Virtual DSM Licenses.Please refer to the SA3400D compatibility list for the latest optional accessories lists.The SA3400D supports up to 36 drives with two Synology RXD1219sas expansion units, sold separately.For the most up-to-date list of compatible NICs and HBAs, please check our compatibility list.SSD cache volumes store frequently accessed data from conventional HDD volumes to reduce I/O latency and improve system performance. To find out which SAS SSDs are supported, please check our compatibility list.The warranty period starts from the date of purchase as stated on your purchase receipt. Learn more about our limited product warranty policy.
Hardware Specifications
Controller
Controller
 Number of Controller Module 2
CPU
CPU
 CPU Model Intel Xeon D-1541
CPU Quantity 1 (per controller)
CPU Core 8
CPU Architecture 64-bit
CPU Frequency 2.1 (base) / 2.7 (turbo) GHz
Hardware Encryption Engine
Memory
Memory
 System Memory 8 GB DDR4 ECC UDIMM (per controller)
Memory Module Pre-installed 8 GB (8 GB x 1) (per controller)
Total Memory Slots 4 (per controller)
Maximum Memory Capacity 64 GB (16 GB x 4) (per controller)
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 multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Storage
Storage
 Drive Bays 12
Maximum Drive Bays with Expansion Unit 36 (RXD1219sas x 2)
Drive Type (See all supported drives)
  • 2.5" dual-port SAS SSD
  • 3.5" dual-port SAS HDD
Hot Swappable Drive*
Notes Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
External Ports
External Ports
 RJ-45 1GbE LAN Port 2 (per controller)
RJ-45 10GbE LAN Port 1 (per controller)
Expansion Port 1 (per controller)
Expansion Port Type Mini-SAS HD
Notes This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
PCIe
PCIe
 PCIe Expansion 1 x Gen3 x8 slot (x8 link) (per controller)
Appearance
Appearance
 Form Factor (RU) 2U
Size (Height x Width x Depth) 88 mm x 482 mm x 724 mm
Weight 19.7 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKS-02)
Notes The rail kit is sold separately
Others
Others
 System Fan 60 mm x 60 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level* 51.3 dB(A)
Power Supply Unit / Adapter 500 watts
Redundant Power Supply
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 257.78 watts (Access)
British Thermal Unit 879.58 BTU/hr (Access)
Notes
  • Power consumption is measured when it is fully loaded with Synology 12TB HAS5300-12T hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Synology HAS5300-8T 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)
Operating Humidity 8% to 80% RH
Storage Humidity 5% to 95% RH
Certification
Certification
  • FCC
  • CE
  • BSMI
  • VCCI
  • RCM
  • UKCA
  • EAC
  • CCC
  • KC
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 For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
Notes: Model specifications are subject to change without prior notice. 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. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.