
Why 40GBASE-LR4 Still Holds a Place in the 100G Era
Introduction It’s easy to assume that once faster optics arrive, older ones immediately lose value. In practice, networks evolve more slowly and pragmatically. The 40GBASE-LR4 module is a great example: it isn’t the newest kid on the block, but it continues to play a useful role. This article looks beyond the headlines and into why…