Cat6 vs Cat6a vs Cat7? Which 10G Ethernet cable wins?

Cat6, Cat6a and Cat7 all support 10G copper networks though they are featured with different specifications and performance. Can Cat6 really do 10Gb? Should I pick Cat6/Cat6a/Cat7 for 10GBASE-T? Read this article to get the comparison between Cat6 vs Cat6a and Cat7 vs Cat6a and the buying guide.

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