Cat5 and Cat6 Ethernet cables are both popular options for wired networking, but there are some important differences between them and reasons why you're probably better off picking the newer 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）。

He was lacking the proper amount of video cable, but had a bunch of cat5 laying around. so he built a converter to run his composite signal through the cat5. He states that he wouldn’t run it ...