These SFP CWDM optical transceivers transmit 10 Gbps over single-mode fibre at distances up to 60 km, available across the CWDM wavelength grid from 1270 to 1610 nm. CWDM (coarse wavelength division multiplexing) is the economical way to multiply fibre capacity: by assigning each transceiver pair its own wavelength, operators run many independent 10G channels over one fibre pair, postponing costly new fibre construction — the standard play for metro networks, regional operators and enterprises leasing limited dark fibre.
The 60 km reach covers metro and regional spans without intermediate amplification, and the SFP form factor plugs into the vast installed base of switches and routers that accept standard modules. At around $15 per unit with a minimum order of 100, the transceivers address network integrators, ISPs and data-centre operators, for whom optics are a continuous consumable: every port turned up, every link upgraded and every failed module replaced generates demand.
Wavelength-specified ordering across the 1270–1610 nm grid lets buyers assemble complete CWDM channel plans from one supply line at a fraction of brand-OEM optics pricing.
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