StarTech SFP-25G-LR-S-C-ST Cisco Compatible SFP28 Transceiver 25GBASE LR

StarTech SFP-25G-LR-S-C-ST Cisco Compatible SFP28 Transceiver 25GBASE LR

Overview

The StarTech SFP-25G-LR-S-C-ST is a Cisco-compatible fiber optic SFP28 transceiver module designed for high-performance 25 Gigabit Ethernet (25GbE) networking. This module is a direct replacement for the Cisco SFP-25G-LR-S-C, providing a reliable and cost-effective solution for high-speed backbone links, data center aggregation, and enterprise-level switch-to-switch connectivity.

Operating at a 1310nm wavelength, this transceiver is engineered for long-reach applications over single-mode fiber (SMF), supporting distances of up to 10 kilometers (6.2 miles). It utilizes the SFP28 form factor, which provides a significant bandwidth increase over standard 10G SFP+ while maintaining a compact physical footprint. The module is fully hot-swappable, ensuring that networking hardware—such as Cisco Catalyst or Nexus switches—remains operational during installation or replacement.

The SFP-25G-LR-S-C-ST features Digital Diagnostic Monitoring (DDM/DOM) support, allowing IT professionals to monitor real-time operating metrics including temperature, optical transmit power, and receive power levels. Built to meet or exceed OEM specifications and MSA (Multi-Source Agreement) standards, this transceiver ensures seamless integration and high-availability performance in modern 25GbE environments.

Key Features

• 100% Cisco compatibility for seamless integration with SFP28-enabled hardware

• Supports 25Gbps throughput for high-demand enterprise and data center tasks

• 1310nm single-mode fiber (SMF) support enables distances up to 10km

• Digital Diagnostic Monitoring (DDM) for proactive performance and health tracking

• Hot-swappable design facilitates hardware maintenance without network downtime

Specifications