Synology
E25G21-F2
Network Card – Dual-Port 25GbE PCIe 3.0 x8 Ethernet Adapter
The Synology E25G21-F2 is a high-performance dual-port 25 Gigabit Ethernet (25GbE) network interface card designed to boost throughput and reduce latency in modern enterprise environments. Ideal for data centers, high-volume file transfers, and virtualization, this PCIe 3.0 x8 adapter ensures that your Synology NAS or compatible server meets the demands of high-speed networking. Featuring two SFP28 ports and efficient CPU offloading, the E25G21-F2 helps organizations increase bandwidth capacity, maximize system responsiveness, and future-proof their IT infrastructure.
Features
Built for next-generation connectivity, the Synology E25G21-F2 enables blazing-fast data transfer speeds of up to 25,000 Mbps per port. Whether you’re managing intensive backup routines, serving data to multiple clients, or running IOPS-heavy applications, this network card provides the consistent bandwidth and reliability needed for mission-critical operations.
Advanced Options
It integrates seamlessly with Synology DiskStation Manager (DSM), making deployment and configuration straightforward for NAS users. By leveraging SFP28 fiber technology, the E25G21-F2 also ensures longer cable runs, better signal integrity, and enhanced thermal efficiency. With support for advanced networking features such as iSCSI, RDMA, and link aggregation, this card empowers IT administrators to build high-availability, low-latency networks with ease.
Product Key Features
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Dual-port 25GbE SFP28 network interface card
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PCIe 3.0 x8 interface for high bandwidth
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Compatible with Synology NAS running DSM 6.2.3 or later
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Supports link aggregation and failover
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Ideal for data-intensive workloads, virtualization, and backups
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Offloads CPU tasks for optimized performance
Reliability & Performance
The Synology E25G21-F2 excels in performance and durability with its dual SFP28 ports, each capable of 25Gbps full-duplex transfer speeds. Designed with enterprise workloads in mind, it reduces latency and offloads network-intensive tasks from your system’s CPU, ensuring higher throughput and lower resource utilization.
Key Features :
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Dual 25GbE SFP28 ports
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PCIe 3.0 x8 host interface
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Max throughput: 50 Gbps combined
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Compatible with Synology NAS with supported expansion slots
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Supports link aggregation, failover, RDMA
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Optimized for virtualization, backups, and storage replication
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Passive cooling with heat sink design
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Supports DSM 6.2.3 and later
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Low-profile form factor
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No external power required
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