E25G21-F2
Dual-port SFP28 add-in card designed to accelerate bandwidth-intensive workflows
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
Upgrade Synology systems with faster networking speeds. Thorough validation ensures seamless integration with DSM.
Check compatibility
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.
Hardware Specifications |
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General | Host Bus Interface | PCIe 3.0 x8 |
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| Bracket Height | Low Profile and Full Height |
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| Size (Height x Width x Depth) | 69 mm x 168 mm x 17.3 mm |
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| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
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| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
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| Relative Humidity | 5% to 95% RH |
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| Warranty | 5 Years |
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| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) |
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Network | IEEE Specification Compliance | - IEEE 802.3ad Link Aggregation
- IEEE 802.3ae 10Gbps Ethernet
- IEEE 802.3by 25Gbps Ethernet
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| Data Transfer Rates | 25 Gbps |
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| Supported Features | - TCP Segmentation Offload (TSO)
- Large Send Offload (LSO)
- Receive Side Scaling (RSS)
- Generic Receive Offload (GRO)
- Generic Segmentation Offload (GSO)
- 1.5 – 9 KB Jumbo Frame
- Offloaded storage over Ethernet
- Non-offloaded storage over Ethernet
- Auto-negotiation between 10Gb/s and 25Gb/s
- TCP/UDP Checksum Offload
- Transmit side scaling (TSS)
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Compatibility |
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Applied Models | - FS series:FS2500, FS6400, FS3600, FS3400, FS3017, FS2017, FS1018, FS3410
- HD series:HD6500
- SA series:SA3600, SA3400, SA3200D
- UC series:UC3200
- 22 series:RS822RP+, RS822+, DS3622xs+, DS2422+
- 21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1221RP+, RS1221+, DS1821+, DS1621xs+, DS1621+
- 19 series:RS1619xs+
- 18 series:RS3618xs, DS3018xs
- 17 series:RS18017xs+, RS4017xs+, RS3617xs+, RS3617RPxs, DS3617xs, DS3617xsII
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