This 4Gbps CWDM LC SFP module operates at a wavelength of 1570nm and is designed specifically for Cisco devices. It supports fiber channel applications over distances up to 40 kilometers, making it ideal for long-range connectivity in data centers.
DS-CWDM4G1570-AO - Addon 4Gbps CWDM LC SFP for Cisco 1570nm Fiber Channel 40km