SWDM4 is a new multi-vendor technology that promises to provide the lowest total cost solution for enterprise data center upgrades to 40G and 100G Ethernet, by enabling the use of the existing 10G duplex OM3/OM4 multimode fiber infrastructure. It also enables a cost-effective approach to increasing bandwidth density for new data center builds, as well as extending the reach when used with OM5 wideband multimode fiber.

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