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Synology E10G21-F2 Network Interface Card – E10G21-F2
Brand: Synology
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For urgent delivery, please contact sales before ordering. Orders usually ship as per the estimated delivery date in certain case backorders may take 4–12 weeks. Images are for illustration only and may differ from the actual item.
Synology E10G21-F2 Network Interface Card – E10G21-F2

E10G21-F2
Dual-port 10GbE SFP+ add-in card for Synology servers
Overview
Features
Boost Connectivity for Bandwidth-Heavy Workloads
The Synology E10G21-F2 is a dual-port 10GbE SFP+ network interface card that lets you boost network bandwidth and performance. Handle more operations, users, and high-resolution videos.
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Throughput
Dual-port 10GbE SFP+
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Flexibility
Optical SR, Optical LR, and DAC support
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Compatibility
Purpose-built for Synology servers
Maximize throughput within minutes
Easy installation
Upgrade Synology systems with faster networking speeds. Thorough validation ensures seamless integration with DSM.

Link Aggregation
Combine the E10G21-F2’s two 10GbE 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.

Detailed Tech Specification
Hardware Specs
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General
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Host Bus Interface | PCIe 3.0 x8 |
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| 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 | |
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Network
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IEEE Specification Compliance |
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| Data Transfer Rates | 10 Gbps | |
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Compatibility
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Applied Models
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| Notes | DSM version requirement: 6.2.3-25426 or later version | |
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 regional partners for professional advice.

















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