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Product Overview

Manufacturer product information

Dual-port 25GbE SFP28 add-in card for Synology systems Support for short-range and long-range transceivers as well as DAC options enables flexible connectivity choices. Dual 25GbE ports can be combined into a Link Aggregation Group to boost throughput up to 50 Gb/s, while also providing port failover and load balancing functionality. Support for CPU offloading and load balancing technologies enables optimal system performance. 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. Learn more

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Technical Specifications

Structured product specifications

General > Host Bus Interface PCIe 3.0 x8
Bracket Height Low Profile and Full Height
Size (Height × Width × 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 AggregationIEEE 802.3ae 10Gbps EthernetIEEE 802.3by 25Gbps Ethernet
Data Transfer Rates 25 Gbps/10 Gbps
Supported Features TCP Segmentation Offload (TSO)Receive Side Scaling (RSS)Generic Segmentation Offload (GSO)1.5 - 9 KB Jumbo FrameTCP/UDP Checksum OffloadTransmit side scaling (TSS)SR-IOVLarge receive offload (LRO)
Notes #2 As mixed link speeds are not supported, both network ports must be configured with the same link speed.
Applied Models PAS series:PAS7700FS series:FS6420, FS6400, FS3600, FS3420, FS3410, FS3400, FS2500HD series:HD6500SA series:SA6400, SA3610, SA3600, SA3410, SA3400D, SA3400, SA3200DUC series:UC3400, UC3200DP series:DP7400, DP720026 series:RS6426xs+, RS4826xs+, RS3626xs, RS1626xs+, RS1226RP+, RS1226+, RS826RP+, RS826+25 series:RS2825RP+, DS1825+23 series:RS2423RP+II, RS2423RP+, RS2423+, DS1823xs+22 series:RS822RP+, RS822+, DS3622xs+, DS2422+21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1221RP+, RS1221+, DS1821+, DS1621xs+, DS1621+19 series:RS1619xs+18 series:RS3618xs17 series:DS3617xsII, DS3617xs
Notes #3 DSM version requirement: 7.1.1-42962 Update 5 or later versionFor models with an AMD Ryzen V1000 CPU, DSM version 7.2.1-69057 or above is required.