SA6400
Handle growing data storage demands with ease
Scalability with great performance
The SA6400 can accommodate up to 1.9 PB with support for eight 12-bay RX1223RP expansion units. Direct connections from host to expansion units ensure optimal performance.
Over10,000/6,200 MB/sread/write after expansion
Up to8expansion units
RX1223RP unitsdirectly connectto SA6400

Advanced networking options
The SA6400 has the flexibility to accommodate different operating environments.
Built-in fast connectivity
Two 10GbE RJ-45 ports provide rapid transfer speeds right out of the box.
Configurable networking options
Add up to 2 extra 10GbE SFP+/RJ-45, 25GbE SFP28, or Fibre Channel ports in varying configurations.
Failover and network balancing
Bond multiple network interfaces with Link Aggregation to enable automatic network failover and load balancing.

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.
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.
Virtual DSM serves as a test environment for package updates or to add an additional layer of security between applications, systems, and data.
Synology has you covered
The SA6400 is backed by Synology's 5-year limited warranty,
Performance backed by Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
- 1Power Button and Indicator
- 2Status Indicator
- 3Alert Indicator
- 4Mute Button
- 5Drive Status Indicators
- 6Drive Trays
- 7Rail Kit Release Tabs
- 8PSU Fans
- 9Power Ports
- 10PSU Indicators
- 11Expansion Ports
- 12PCIe Expansion Slots
- 13Reset Button
- 14Console Port
- 15Management Port
- 16USB 3.2 Gen 1 ports
- 171GbE RJ-45 ports
- 1810GbE RJ-45 ports
Hardware Specifications |
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CPU |
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CPU
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CPU Model | AMD EPYC 7272 |
| CPU Quantity | 1 | |
| CPU Core | 12 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 2.9 (base) / 3.2 (turbo) GHz | |
| Hardware Encryption Engine | ||
Memory |
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Memory
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System Memory | 32 GB DDR4 ECC RDIMM |
| Memory Module Pre-installed | 32 GB (32 GB x 1) | |
| Total Memory Slots | 16 | |
| Maximum Memory Capacity | 1024 GB (64 GB x 16) | |
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Storage |
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Storage
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Drive Bays | 12 |
| Maximum Drive Bays with Expansion Unit | 108 (RX1223RP x 8) | |
| Drive Type (See all supported drives) |
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| 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 |
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External Ports
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RJ-45 1GbE LAN Port | 4 |
| RJ-45 10GbE LAN Port | 2 | |
| Out-of-Band Management LAN Port | 1 | |
| Max. Number of LAN Ports | 15 | |
| USB 3.2 Gen 1 Port | 2 | |
| Expansion Port | 8 | |
| Expansion Port Type | Mini-SAS HD | |
PCIe |
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PCIe
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PCIe Expansion | 2 x Gen3 x8 slots (x8 link) |
Appearance |
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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 | 16.5 kg | |
| Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS-02) | |
| Notes | The rail kit is sold separately | |
Others |
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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 | ||
| Power Recovery | ||
| Noise Level* | 55.5 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 550 watts | |
| Redundant Power Supply | ||
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption |
180.5 watts (Access) 88.56 watts (HDD Hibernation) |
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| British Thermal Unit |
615.89 BTU/hr (Access) 302.18 BTU/hr (HDD Hibernation) |
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| Notes |
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Temperature |
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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) | |
| Operating Humidity | 8% to 80% RH | |
| Storage Humidity | 5% to 95% RH | |
Certification |
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Certification
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Warranty |
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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) | |
Environment |
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Environment
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RoHS Compliant | |
Packaging Content |
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Packaging Content
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Optional Accessories |
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Optional Accessories
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| 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. | |


