The 12-bay Synology SA6400 is designed for rapid data scaling. With support for up to 108 drives after expansion, this unit is ideal for enterprise data centers, large production studios, and growing businesses in the retail and hospitality sectors looking to tackle data-intensive projects while leaving room for future expansion.
Up to 2.1 PB with 8 x RX1223RP expansion units
Over 6,500/4,000 MB/s sequential read/write
Optional 25/40GbE or Fibre Channel connectivity
The SA6400 scales up flexibly whenever your data demands do. Accommodate up to 9 times the original capacity by adding 12-bay RX1223RP expansion units as your deployment grows.
The SA6400 is designed with built-in redundancies to keep mission-critical services running, even when disaster strikes.
The SA6400 has the flexibility to accommodate different operating environments.
Two 10GbE RJ-45 ports provide rapid transfer speeds right out of the box.
Add up to 2 extra 10GbE SFP+/RJ-45, 25GbE SFP28, or Fibre Channel ports in varying configurations.
Bond multiple network interfaces with Link Aggregation to enable automatic network failover and load balancing.
Provide easy access to business data, consolidate digital assets, or host cost-efficient business solutions.
Take advantage of the SA6400’s high storage capacity and expansion capability to host large amounts of data on a central repository. Provide user-friendly access to business data and set up powerful cross-site syncing to empower remote and multi-site collaboration.
Empower your entire organization with a streamlined ability to access, share, and sync data from anywhere. Provide employees with access to corporate files through mobile apps, desktop clients, and a browser-based interface. Set granular file and folder access and sharing permissions. Maintain a full overview of file activities and track file share settings changes with detailed records in the Synology Drive Admin Console.
Leverage SMB or NFS protocols to provide efficient access to company files over the local network or VPN. Manage data access privileges with access control lists (ACL) through Active Directory/LDAP integration and protect files against tampering, loss, or removal with built-in snapshot technology.
Make sure branches always have up-to-date copies of crucial documents and data available locally by syncing Synology systems one or two-way using Synology Drive ShareSync. Have files updated across locations each time there is a change to efficiently keep all stakeholders on the same page.
Boost syncing speeds, cut bandwidth use, and reduce your storage footprint by leveraging the powerful connectivity of our data centers. Synology Hybrid Share intelligently synchronizes data to Synology devices. Large or less frequently accessed files are stored on the cloud to reduce local storage requirements, while frequently used files are stored on local devices to provide users access at LAN speeds.
Back up PCs, servers, Synology systems, SaaS data, and VMs, and back up your backup servers themselves with a scalable central storage solution.
Securely back up Windows clients and servers, Linux endpoints, Synology systems, and VMware® and Hyper-V® virtual machines to the SA6400 with Active Backup for Business. Manage them through a centralized management console and choose between bare-metal or file-level restoration. Built-in data deduplication maximizes storage efficiency.
Protect Microsoft 365 and Google Workspace accounts by maintaining complete offline copies of your crucial information and configurations with Active Backup for Microsoft 365 and Active Backup for Google Workspace.
Use Hyper Backup to back up files, LUNs, installed applications, and system configurations from tens or hundreds of Synology servers to your SA6400. Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, reduce backup sizes with built-in deduplication, and restore data flexibly with multi-versioning.
Snapshot Replication enables configurable point-in-time snapshots of shared folders and LUNs with an RPO as low as 5 minutes and recovery within seconds.
Manage bare-metal backups of all your Synology servers from a single centralized console on the SA6400. Leverage built-in deduplication technology to reduce backup sizes while multi-versioning provides flexible restoration options.
Host cost-efficient business solutions, either through containers, virtual machines, or Synology DiskStation (DSM)’s own solutions, including a powerful free backup suite, a versatile mail server, and a surveillance VMS with transparent licensing.
Create and edit documents, spreadsheets, and slides together with your whole team in real time. Easily migrate existing documents from other platforms and take ownership of your files in a secure private cloud.
Synology’s private cloud mail solution provides ease of use, full data ownership, and robust data security with a low total cost of ownership thanks to its perpetual licensing model.
Keep teams connected through encrypted one-on-one private chats, public channels, and group conversations. Efficiently organize discussions with bookmarks, searchable hashtags, and chatbots.
Run Docker containers and VMs on SA6400 using Docker and Synology Virtual Machine Manager (VMM) — a hypervisor for virtualized versions of Windows®, Linux®, and DSM — to safely test and evaluate applications.
Virtual DSM serves as a test environment for package updates or to add an additional layer of security between applications, systems, and data.
Stay on top of your fleet and keep it in optimal condition with our cloud and DSM-based monitoring and management solutions.
Conveniently manage your fleet of Synology systems from a centralized console.
A powerful cloud-based platform for monitoring performance, backup status, login activity and performing lightweight management tasks.
The SA6400 is backed by Synology's 5-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance.
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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 (Determining cache size) | ||
| SSD TRIM | ||
| RAID Group | ||
| 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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| Internal Drives |
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| External Drives |
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| File Protocol |
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| Maximum Concurrent SMB/AFP/FTP Connections | 8,000 | |
| Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) | 10,000 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| 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 | |
| Maximum Hybrid Share Folders | 30 | |
| Folder and Package Backup | ||
| Entire System Backup | ||
| Notes | Full-system backup requires DSM 7.2 or later. | |
| Synology High Availability | ||
| Syslog Events per Second | 3,000 | |
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Virtualization
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VMware ESXi 6.5 and VAAI | |
| Windows Server 2022 | ||
| Citrix Ready | ||
| OpenStack | ||
| Supported 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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| Suggested Users | 1,500 | |
| Notes |
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Download Station
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Maximum Concurrent Download Tasks | 80 |
| Maximum iSCSI Target Number | 256 | |
| Maximum LUN | 512 | |
| LUN Clone/Snapshot, Windows ODX | ||
| Free Email Accounts | 5 (Additional accounts require purchase of licenses) | |
| Suggested Users | 14,000 | |
| Notes |
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| DLNA Compliance | ||
| Facial Recognition | ||
| Object Recognition | ||
| Maximum Snapshots per Shared Folder | 1,024 | |
| Maximum of System Snapshots | 65,536 | |
| Default Licenses | 2 (Additional cameras require purchase of licenses) | |
| Suggested Maximum IP Cameras and Total FPS (H.264) |
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| Suggested Maximum IP Cameras and Total FPS (H.265) |
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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 | 100,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
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| Suggested Users | 20,000 | |
| Notes |
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| Recommended Virtual Machine Instances | 24 (Learn more) | |
| Recommended Virtual DSM Number (Licenses required) | 24 (including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| Maximum Connections | 60 | |
| NAS | |
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| RJ-45 10GbE LAN Port | 2 |
| CPU Architecture | 64-bit |
| CPU Core | 12 |
| CPU Frequency | 2.9 (base) / 3.2 (turbo) GHz |
| CPU Model | AMD EPYC 7272 |
| CPU Quantity | 1 |
| Drive Bays | 12 |
| Expansion Port | 8 |
| Form Factor (RU) | 2U |
| Hardware Encryption Engine | Yes |
| Hot Swappable Drive | Yes |
| Maximum Memory Capacity | 1024 GB (64 GB x 16) |
| Memory | 32 GB DDR4 ECC RDIMM |
| PCIe Expansion | 2 x Gen3 x8 slots (x8 link) |
| Power Supply Unit / Adapter | 550 watts |
| Redundant Power Supply | Yes |
| RJ-45 1GbE LAN Port | 4 |
| System Fan | 80 mm x 80 mm x 4 pcs |
| Total Memory Slots | 16 |
| USB 3.2 Gen 1 Port | 2 |
