Synology SA3400D 12-Bay 2U Dual-Controller NAS
Prices in SGD, excluding 9% GST.
PRODUCT DESCRIPTION
Synology SA3400D 12-Bay 2U Dual-Controller NAS - 5 Years Warranty
Built-in high availability
Two hot-swappable controllers run active-passive with minute-level automatic failover.
File and block performance
Over 3,500 MB/s SMB read; 340,000 4K random read IOPS over iSCSI with SSDs.
Scales to 36 bays
Up to 864 TB raw with two RXD1219sas units.
Synology SA3400D Datasheet — Technical Specifications
General
| Product Name | Synology SA3400D |
| Model | SA3400D |
| Form Factor | 2U rackmount, dual controller |
| Operating System | Synology DSM |
| Warranty | 5 years (Synology) |
Processor & Memory (per controller)
| CPU | Intel Xeon D-1541, 8-core / 16-thread, 2.1 GHz (turbo 2.7 GHz) |
| Memory | 8 GB DDR4 ECC UDIMM |
| Memory Slots / Max | 4 slots, up to 64 GB |
Storage
| Drive Bays | 12 x 3.5"/2.5" dual-port SAS |
| Expansion | Up to 36 drives with 2 x RXD1219sas |
Ports (per controller)
| LAN | 2 x 1GbE RJ-45, 1 x 10GbE RJ-45 |
| Expansion Port | 1 x Mini-SAS HD |
| PCIe | 1 x Gen3 x8 slot |
Power & Physical
| Power Supply | 500 W |
| Dimensions (H x W x D) | 88 x 482 x 724 mm |
| Weight | 19.7 kg |
Compatibility & Applications
Compatibility
Expands with up to two RXD1219sas. Rail kit RKS-02 sold separately. Uses dual-port SAS drives (HAS5300 series).
Typical Use
High-availability file, iSCSI/FC block and VM storage.
Package Contents & Synology Ordering Information
In the Box
1 x SA3400D main unit, power cord(s), RJ-45 LAN cable(s), accessory kit and quick installation guide. Drives and rail kit not included unless stated.
Synology Enterprise & All-Flash Systems at SourceIT
| Model | Key feature |
| SA3400D (this listing) | 12-bay 2U dual-controller NAS |
| UC3400 | 12-bay 2U active-active SAN |
| FS2500 | 12-bay 1U all-flash NAS |
| FS3420 | 24-bay 2U all-flash NAS |
| FS6420 | 24-bay 2U all-flash NAS |
| DP7200 | 2U rackmount backup appliance |
| DP7400 | 2U rackmount backup appliance |
Official Synology Videos
Introducing DiskStation Manager 7.3 (official Synology channel)
Introducing Synology Active Backup for Business (official Synology channel)
Going for Zero-downtime with Synology's new Dual-controllers — webinar (official Synology UK & Nordics channel)
Datasheet & Downloads
| Specifications | SA3400D on synology.com |
| Compatibility | Synology compatibility list |
| Downloads | SA3400D Download Center |
Frequently Asked Questions — Synology SA3400D
How does failover work?
Two controllers run active-passive with automatic minute-level failover.
What drives does it use?
Dual-port SAS HDDs or SSDs, such as Synology HAS5300.
What is the warranty?
5 years Synology limited warranty.
Do I get a GST invoice?
Yes. Supplied by SourceIT in Singapore with a GST invoice.






