25GbE connectivity for seamless integration to modern enterprise networks

High-performance connectivity upgrade

Flexible SFP28 options
Support for short-range and long-range transceivers as well as DAC options enables flexible connectivity choices.

Link aggregation
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.1

CPU offloading and load balancing
Support for CPU offloading and load balancing technologies enables optimal system performance.

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.2

Ports & interfaces
Connectivity technology	Wired
Host interface	PCI Express
Interface	Ethernet
Ethernet LAN (RJ-45) ports	2
Fiber optic connector	SFP28
PCI version	3.0
PCI Card form factor	Full-height (low-profile)
Weight & dimensions
Width	168 mm
Depth	17.3 mm
Height	69 mm
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-20 - 60 °C
Operating relative humidity (H-H)	5 - 95%
Network
Maximum data transfer rate	3125 Mbit/s
Networking standards	IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3by
Ethernet LAN	Yes
Jumbo frames support	Yes
Jumbo frames	9
Design
Internal	Yes
Component for	Server
Product colour	Blue
Compatible products	FS series:FS6400, FS3600, FS3410, FS3400 HD series:HD6500 SA series:SA6400, SA3610, SA3600, SA3410, SA3400D, SA3400, SA3200D UC series:UC3400, UC3200 22 series:DS3622xs+ 21 series:RS4021xs+, RS3621xs+, RS3621RPxs, DS1621xs+ 19 series:RS1619xs+ 18 series:RS3618xs 17 series:DS3617xs