The Approved Technology SFP-CW-1G-EX40-57-C is a 1G CWDM Small Form-factor Pluggable (SFP) transceiver, engineered for high-speed data communication over single-mode fiber optic cables. Operating at a wavelength of 1570nm, this module supports a transmission distance of up to 40 kilometers. This SFP transceiver is commonly used in Gigabit Ethernet and Fiber Channel applications, providing a cost-effective and efficient solution for extending network reach. Its hot-pluggable design allows for easy installation and replacement without interrupting network operations. Supreme Components International is an authorised distributor of Approved Technology, ensuring you receive a genuine, high-quality product backed by comprehensive support. This transceiver is a reliable choice for demanding networking environments.