Different cat cables

How Cat 5 cable works ?

  • Category 5 cable, commonly referred to as Cat 5, is a twisted pair cable for computer networks.
  • The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair. 
  • It is also used to carry other signals such as telephone and video.
  • It can handle 10/100 Mbps speeds (Fast Ethernet) at up to 100 MHz bandwidth.
  • The twits in the wire protect the inner conductors from Electromagnetic induction.
  • Usually it'll have the colors of white/green,green,white/orange,blue ,white/blue,orange,white/brown and brown.
  • Category 5 cables are unshielded, relying on the balanced line twisted pair design.

What is the difference between Cross Cable and Straight Cable ?
Straight Cable :

  • Usually straight cable is use to connect different type of devices.
  • Connect a computer to a switch/hub's normal port.
  • Connect a computer to a cable/DSL modem's LAN port etc
  • Both sides (side A and side B) of cable have wire arrangement with same color.

Cross Cable :

  • It's usually used to connect same type of devices.
  • Connect two computers directly. 
  • Connect two switches/hubs by using normal port in both switches/hubs.


Cat 5Cat 5ECat 6
Frequency100MHz100MHz250MHz
Theoretical Top Speed100Mbps1000Mbps10Gbps
Standard100BASE-TX1000BASE-TX10GBASE-T
PerformanceIt overtook cat 3 as the ethernet cable from early 2000'sReduced Cross talkInternal Separator