Cat5 may still be an option, but Cat6 is faster, safer, and more durable Cat5 cables were the best option for wired networking (also called Ethernet) for a long time. But since the release of Cat6, ...

若六类（Cat6）网线误用五类（Cat5）水晶头，或超五类（Cat5e）网线使用不达标接头，可能导致网络速率从千兆（1000Mbps）降至百兆（100Mbps）。

Sure enough, 80% of the Cat 6 cables they tested from big box stores etc. failed the specification. More surprising, many of them didn’t even pass the Cat 5e specification. [Blue Jeans Cable ...