Can a Cat 6 modular plug be plugged into Cat 5 and 5e RJ-45 Jacks?
Yes. The physical dimensions of Cat 6 RJ-45 plugs and jacks are identical to Cat 5 and 5e plugs and jacks. They are backward compatible with Cat 3, Cat 5, and Cat 5e plugs and jacks.
Tags: physical dimensions cat 6 rj-45 plugs jacks cat 5 5e plugs compatible cat 3
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