The Finisar FTLF8524P3BNLNS2 (OEM part number 4807528) is a high-performance Small Form-factor Pluggable (SFP) optical transceiver designed for 4 Gigabit Fibre Channel (4GFC) and Gigabit Ethernet applications. This module operates at a nominal wavelength of 850nm over multi-mode fiber (MMF). It features a triple-rate capability, providing auto-sensing support for 4.25, 2.125, and 1.0625 Gbps Fibre Channel speeds, while also maintaining full compatibility with 1.25 Gbps Gigabit Ethernet (1000BASE-SX) protocols.The unit is equipped with a standard duplex LC connector and utilizes a Vertical-Cavity Surface-Emitting Laser (VCSEL) as its optical source. It supports transmission distances of up to 300 meters on 50/125 µm OM2 fiber and up to 500 meters on high-bandwidth OM3 multi-mode fiber in 1GbE mode. The transceiver fully supports Digital Diagnostic Monitoring (DDM), enabling real-time access to operational parameters such as laser bias current, optical transmit power, received optical power, internal temperature, and supply voltage. The "NS2" suffix indicates specific firmware and hardware optimization for high-reliability telecommunications and storage systems. This hot-swappable module is compliant with the SFP Multi-Source Agreement (MSA) and meets Class 1 laser safety standards, ensuring robust performance in enterprise-grade data center environments.