Cabling is one of the longest-lived assets in a network, and, while initial deployments of multigigabit technologies may be able to take advantage of installed cabling plants, anyone planning for the long term with a new deployment should consider Category 6A cabling to grow into the future without limiting application performance. This paper explores the history and likely future of data communications and power over Ethernet technologies to explain: what makes Category 6A fundamentally different from Categories 5e and 6 and why it matters today.

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