8 Channels CWDM MUX DEMUX Support 8 channels difference business in two optical fiber for point-to-point transmission. Wavelength from 1470nm to 1610nm, and it is passive CWDM and plug-in LGX box, can plug in 2slot 1u rack. Expansion Port for Future Bandwidth Increasing, makes it possible to increase the network capacity by connecting it to the line port of another CWDM MUX/DEMUX supporting different wavelengths, without the need of installing or leasing additional fibers. It works in Broadcast and TV, IDC, finance, government, cloud, massive data and other industries, where the optical fiber resource are rare.