As large data centers are quickly moving to 100GbE speeds, designers are now looking at the 400GbE options that are becoming available. The options for 400G are much more varied and complex than prior speeds. And whether it is 100G or 400G, there needs to be a cable plant designed to accommodate the technology. How does one go about determining the most cost effective solution with so many moving targets? Nexans has developed an addition to its popular “Own the Link” calculator to help data center designers answers these questions. This presentation will cover some of the specification requirements for 100GbE and 400GbE options and then introduce an online tool that can help determine the most cost effective options.