Difference between cat5 and cat6 cables

- Sep 03, 2020-

First of all, we need to know what is the difference between a gigabit network cable and a 100M network cable.

The most direct way to see is that there will be a mark on the outside of the network cable. The one marked with CAT5E or CAT6 is a gigabit network cable. If it is CAT5, it means 100M.


Gigabit networks must use at least Cat5 cables, and in reality application, Cat 6 cables are mainly used. The Cat5 network cables are usually 100M network cables.

The salient feature of the Cat6 cable is that there is a cross frame in the middle of the line, so that the four groups can be separated first.

The core of the 100M network cable is usually 0.5 mm, and the cate 6 Gigabit cable must reach 0.57 mm.

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In actual application, the 100M network cable can communicate through four cores, and the Gigabit network must work at the same time to communicate.

In addition, if you are using a gigabit device, you can distinguish whether it is 100M or gigabit through the device outlook.

Each network port has two green lights on the left and right. The left light indicates the 100M speed rate, the right light indicates the 10M speed rate, and both lights indicate the 1000M device is connected. Of course, the switch, network cable, and equipment connected to the switch all support 1000M, and this 1000M will light up.

Another point to note, if you use a gigabit network cable, you must use a gigabit crystal head. Many people will ignore this and think the crystal head is the same. In fact, there is a difference.

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