Keep dense optical networks on plan with a Cisco remanufactured SFP+ transceiver tuned to 1556.55 nm and aligned to the 100 GHz ITU grid. This module is intended for DWDM deployments where exact wavelength placement is part of the design, not an afterthought. In environments that carry multiple services across limited fiber, DWDM optics help preserve capacity while maintaining strict channel separation. The 1556.55 nm wavelength gives network teams a defined slot in the optical plan, which is critical when links must coexist cleanly with other channels. Cisco remanufactured sourcing adds a practical procurement advantage: you get a known vendor profile and original MPN lineage while reducing spend versus new-in-box alternatives. That matters when you are standardizing spares, extending the life of installed infrastructure, or scaling a wavelength-managed backbone without overspending. Choose this module when the network design depends on exact optical placement, stable 10 GbE transport, and disciplined use of existing fiber assets. It is a focused component for teams that value control, compatibility, and cost efficiency in equal measure.