Description, Specifications for Synology E25G21-F2
Maximize Bandwidth for Heavy-Duty Applications
The Synology E25G21-F2 is a dual-port 25GbE SFP28 network interface card that lets you boost network bandwidth and performance. Handle higher quantities of data traffic for increased users and the most data-intensive workloads.

Throughput
Dual-port 25GbE SFP28

Flexibility
Optical SR, Optical LR, and DAC support

Compatibility
Purpose-built for Synology servers
Boost throughput within minutes
-
Easy installation
-
Link Aggregation
-
Upgrade Synology systems with faster networking speeds. Thorough validation ensures seamless integration with DSM.
-
Combine the E25G21-F2’s two 25GbE ports into a Link Aggregation group to enable higher simultaneous throughput, port failover, and load balancing.
Easy installation
Upgrade Synology systems with faster networking speeds. Thorough validation ensures seamless integration with DSM.

Link Aggregation
Combine the E25G21-F2’s two 25GbE ports into a Link Aggregation group to enable higher simultaneous throughput, port failover, and load balancing.


5-year warranty
At Synology, we are committed to product innovation and quality. Synology guarantees a robust and reliable data management experience with a 5-year limited warranty, providing responsive technical support and hardware replacement services to maximize your return on investment.

Synology Replacement Service (SRS)
SRS provides free advance replacement units as early as the next business day in selected regions, maximizing the service uptime for your mission-critical storage and ensuring your business continuity. .
High performance storage systems
FS6400

- 240,000 4K random write IOPS
- Dual 8-core 2.1 GHz CPU
- Synology RAID F1 for flash storage endurance
SA3600

- 12-core CPU Turbo Boost up to 2.7 GHz
- Over 5,500 MB/s sequential throughput reading
- Scale up to 180/96 drives
RS4021xs+

- Over 234,698 4K random read IOPS
- Built-in dual 10GbE ports
- Up to 40 bays with RX1217(RP)
Hardware Specifications
|
||
---|---|---|
General
|
||
General
|
Host Bus Interface | PCIe 3.0 x8 |
Bracket Height | Low Profile and Full Height | |
Size (Height x Width x Depth) | 69 mm x 168 mm x 17.3 mm | |
Operating Temperature | 0°C to 40°C (32°F to 104°F) | |
Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
Relative Humidity | 5% to 95% RH | |
Warranty | 5 Years | |
Notes | The warranty period starts from the purchase date as stated on your purchase receipt. | |
Network
|
||
Network
|
IEEE Specification Compliance |
|
Data Transfer Rates | 25 Gbps | |
Supported Features |
|
|
Compatibility
|
||
Applied Models
|
||
Applied Models
|
|
|
Notes |
|
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 for professional advice.