When the link spans metro distances or remote facilities, the optical layer has to do more than simply connect two ports. This 10GBASE-CWDM SFP+ module is tuned to 1530 nm and rated for 80 km, giving infrastructure teams a long-reach option for single-mode fiber environments that demand controlled wavelength selection and dependable 10 GbE transport. Its CWDM design is a strong fit for networks that need to preserve fiber plant efficiency while extending reach well beyond standard short- and mid-range optics. The SFP+ footprint keeps deployment simple in dense switching platforms, while the LC duplex interface aligns with common optical infrastructure practices. For Arista-compatible environments, it provides a focused transceiver choice for backbone extensions, aggregation paths, and remote site connectivity where link stability and distance are the priority. Choose this module when the network design calls for long-haul optical reach without moving to a different hardware class. It is built for teams that value precise wavelength selection, single-mode transport, and a disciplined approach to 10 GbE expansion.