Synology E25G21-F2 PCIe 3.0 Network Card

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Dual-port SFP28 add-in card designed to accelerate bandwidth-intensive workflows


Features:

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

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.


Hardware Specifications:

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. (Learn more)

Network:
- IEEE Specification Compliance:
- IEEE 802.3ad Link Aggregation
- IEEE 802.3ae 10Gbps Ethernet
- IEEE 802.3by 25Gbps Ethernet
- Data Transfer Rates: 25 Gbps

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)

Compatibility:
Applied Models:
- FS series:FS3400, FS3017, FS2017
- SA series:SA3400, SA3200D
- 21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS2421RP+, RS2421+, RS1221RP+, RS1221+, DS1821+, DS1621xs+, DS1621+
- 19 series:RS1619xs+
- 18 series:RS3618xs, DS3018xs 17 series:RS18017xs+, RS4017xs+, RS3617xs+, RS3617RPxs, DS3617xs
- Notes: DSM version requirement: 6.2.3-25426 or later version



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Specifications

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Manual

Size chart