E25G21-F2

E25G21-F2

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

E25G21_F2
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

Throughput

Dual-port 25GbE SFP28

Flexibility

Flexibility

Optical SR, Optical LR, and DAC support

Compatibility

Compatibility

Purpose-built for Synology servers

High performance storage systems

DiskStation

FS6400

FS6400
  • 240,000 4K random write IOPS
  • Dual 8-core 2.1 GHz CPU
  • Synology RAID F1 for flash storage endurance
DiskStation

SA3600

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
DiskStation

RS4021xs+

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. (Learn more)

Network

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

Applied Models

  • FS series:FS6400, FS3600, FS3400, FS3017, FS2017, FS1018
  • SA series:SA3600, SA3400, SA3200D
  • UC series:UC3200
  • 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
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.