Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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$23.99
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Synology Inc.
Synology Inc. UC3400 2x Xeon D-1541 16GB DDR4 NAS
Dual Xeon D-1541 8-core desktop NAS with 16GB DDR4, expandable to 64GB
- Processor2x Intel Xeon D-1541 8-Core: 2.1 to 2.7 GHz
- Installed Memory16GB DDR4
- Max Memory Capacity64GB
- Power100-240 VAC 50/60Hz
- Power Consumption239.25 W (Access)
- Temperature0°C - 35 °C
- Dual Xeon D-1541 processors deliver 16 cores for heavy workloads
- 16GB DDR4 memory installed, expandable to 64GB for growth
- 100-240 VAC 50/60Hz power works worldwide without adapters
- Compact 3.4 x 16.9 x 27.24 inch desktop form fits tight spaces
- Operates reliably from 0°C to 35°C in 5-95% humidity
Dual Xeon D-1541 desktop NAS
The Synology UC3400 is a desktop network-attached storage appliance built around two Intel Xeon D-1541 eight-core processors running from 2.1 to 2.7 GHz. It ships with 16 GB of DDR4 memory installed and supports expansion up to 64 GB. This configuration targets organisations that need multi-threaded compute and virtualisation capacity inside a single desk-side unit.
Compact chassis with dual power cords
The enclosure measures 3.4 by 16.9 by 27.24 inches and weighs 43.43 lbs, so it occupies a modest footprint while remaining substantial enough to stay put on a shelf. Two AC power cords are included for connection to separate circuits, and the unit operates from 100 to 240 VAC at 50 or 60 Hz. An accessory pack and quick installation guide complete the bundle for immediate deployment.
DDR4 ceiling and thermal envelope
Memory upgrades stop at 64 GB of DDR4, limiting the number of concurrent virtual machines or heavy databases the system can host. Power draw reaches 239.25 W under access loads, and the operating range is 0 °C to 35 °C with 5 to 95 percent relative humidity. Buyers who need more memory bandwidth or higher thermal headroom must look beyond this platform.
Highlights
- Dual Xeon D-1541 processors deliver 16 cores for heavy workloads
- 16GB DDR4 memory installed, expandable to 64GB for growth
- 100-240 VAC 50/60Hz power works worldwide without adapters
- Compact 3.4 x 16.9 x 27.24 inch desktop form fits tight spaces
- Operates reliably from 0°C to 35°C in 5-95% humidity
Specifications
| Brand | Synology |
|---|---|
| Series | UC3400 |
| Processor | 2x Intel Xeon D-1541 8-Core: 2.1 to 2.7 GHz |
| Installed Memory | 16GB DDR4 |
| Max Memory Capacity | 64GB |
| Power | 100-240 VAC 50/60Hz |
| Power Consumption | 239.25 W (Access) |
| Temperature | 0°C - 35 °C |
| Humidity | 5-95% R.H |
| Dimensions | 3.4 x 16.9 x 27.24 |
| Weight | 43.43 lbs |
| Package Contents | Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1 |
| Shipping weight | 24.61 kg |
| Package size | 820 × 610 × 240 mm |
Questions about this item
What maximum memory capacity does the UC3400 support with its DDR4 slots?
The UC3400 supports up to 64GB of DDR4 memory across its available slots.
What are the exact dimensions and weight of the UC3400 for rack or shelf planning?
The unit measures 3.4 x 16.9 x 27.24 inches and weighs 43.43 lbs.
How do you install additional memory in the UC3400, and what step is commonly missed?
Power off the NAS, remove the cover, insert DDR4 modules until they click, then replace the cover before powering on; skipping the full power-down causes detection failures.
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