The Approved Technology SFP-SDB-FE-S15K-C is a high-performance 100BASE-FX Small Form-factor Pluggable (SFP) transceiver. Operating at a wavelength of 1310nm, this module is engineered to transmit data over distances of up to 15 kilometers. This SFP transceiver is ideal for extending network reach in Fast Ethernet applications. It provides a reliable and cost-effective solution for connecting network devices over longer distances. Supreme Components International is an authorised distributor of Approved Technology, ensuring that you receive a genuine and high-quality product. This transceiver is commonly used in telecommunications, data centers, and enterprise networking environments where long-distance, fast ethernet connectivity is required.