Description
The Synology E25G21-F2 represents a critical upgrade for businesses transitioning from 10GbE to higher-bandwidth infrastructure. Built with a PCIe 3.0 x8 interface, this dual-port SFP28 network interface card (NIC) delivers up to 25 Gbps per port, effectively addressing the data-intensive demands of modern data centers. By offloading network processing tasks from the CPU, it ensures that your Synology NAS maintains peak performance even under heavy concurrent access, making it an essential component for high-availability storage clusters.
This product is for:
- Enterprise IT Administrators: Ideal for managing large-scale virtualization environments where high-speed VM migration and storage traffic are paramount.
- Creative Professionals: Perfect for post-production houses requiring massive bandwidth for real-time 4K/8K video editing and collaborative workflows.
- Data Center Managers: Designed for high-density server environments that need to maximize throughput while minimizing physical footprint.
- Backup Specialists: Optimized for organizations performing frequent, large-scale data synchronization and off-site disaster recovery.
- Software Developers: Suitable for teams running complex containerized applications and microservices that demand low-latency inter-node communication.
Detailed specifications:
- Host Bus Interface: PCIe 3.0 x8
- Network Ports: Dual SFP28 connectors
- Data Transfer Rate: 25 Gbps / 10 Gbps per port
- Form Factor: Low-profile and Full-height brackets included
- Dimensions: 69 mm x 168 mm x 17.3 mm
- Supported Features: TCP Segmentation Offload (TSO), Large Send Offload (LSO), Receive Side Scaling (RSS), Generic Receive Offload (GRO), Generic Segmentation Offload (GSO)
- Jumbo Frame Support: 1.5 KB to 9 KB
- Compliance: IEEE 802.3ad Link Aggregation, IEEE 802.3ae 10Gbps Ethernet, IEEE 802.3by 25Gbps Ethernet
- Warranty: 5-year limited warranty
Integrating the E25G21-F2 into a compatible Synology NAS is a seamless experience, requiring DSM 6.2.3-25426 or later for full functionality. The card supports advanced offloading technologies like RSS and TSO, which significantly reduce the host CPU overhead, allowing the system to dedicate more resources to application processing. Its dual-port design allows for Link Aggregation, providing either 50Gbps of total bandwidth or failover redundancy to ensure continuous uptime in professional environments. The hardware is built for reliability, operating efficiently in temperatures ranging from 0°C to 40°C.
Compared to standard 10GbE solutions like the E10G18-T1, the E25G21-F2 offers 2.5 times the bandwidth per port, making it a future-proof investment for growing networks. While 10GbE is often sufficient for small office backups, 25GbE is the current industry standard for enterprise-grade flash storage arrays (FS series) and high-end rackmount units (RS series). The SFP28 interface is also more power-efficient and offers lower latency than RJ-45 based 10GBASE-T copper connections, especially over longer distances using fiber optics.
Q&A:
- Can I use 10GbE SFP+ modules with this card? Yes, the E25G21-F2 supports auto-negotiation between 10Gbps and 25Gbps, allowing for backward compatibility with existing 10GbE SFP+ infrastructure.
- Which Synology models are compatible with the E25G21-F2? It is compatible with a wide range of FS, SA, UC, and high-end RS/DS series models, including the DS3617xsII, RS4021xs+, and FS6400.
- Does this card support Link Aggregation? Yes, it fully supports IEEE 802.3ad Link Aggregation to combine both ports for increased throughput or redundancy.
- What is the benefit of SFP28 over RJ-45? SFP28 provides significantly lower latency and lower power consumption, which is vital for high-performance computing and enterprise storage.
- What is the warranty period for this network card? Synology provides a 5-year limited warranty, ensuring long-term reliability and support for enterprise deployments.
