Cat5e Ethernet Cable [ A Complete Guide ]

What is a Cat 5E :

Cat5E cable is invented since 15 years ago. It is an updated version of Cat 5. This tool comes to the market in 1999 as part of Telecommunication Industry Association (TIA/EIA-568-A) specification. The Cat 5 e is more powerful than Cat 3 and 5 version.

Cat 5e Ethernet Cable network infrastructure base on 1000 BASE-T GB networks. By this cabling, the user will get 100 MHZ power of standard performance and 100-meter long cable. The performance is standard and improves the functions. It helps to get fast speed and make the network to flow high-level performance. So significantly it keeps a distance without impact by crosstalk.

What pairs are used in cat 5E :

The Cat 5e has 4 types of the pair. These are unshielded with Twisted  Pairs which in briefly says as UTP. The 4 pair connected by a copper wire terminator. This wire connector is known as RJ45 Connector.

What is RJ45: the full abbreviation of RJ45 Is Registered Jack, which includes eight wire connector. These wires built basic local area network like a computer. RJ45 quite similar to RJ11. By RJ11 which is popularly used for Telecommunication type of network building.

So RJ45 which is used to connect computer by Ethernet switch straight cables. In generally RJ45 of Cat 5e uses 4 pairs of wire or eight connectors. These are:

  1. 1 and 2: Orange Pin Wire
  2. 3 and 6: Green Pin Wire
  3. 4 and 5: Blue Pin Wire
  4. 7 and 8: Brown Pin Wire

Above of this 4 pair of wire, only a and b are used. Orange and Green Pin wires are usually used in the RJ45 model. Rest of c and d, Blue and Brown wire do not calculate work at this stage. The main two pair work under 1000 Mbps speed used and 100 MHZ power.

So the main two pair of the cable is T568-A and T568-B. this two pair works with orange and Green wire pins but other pins are wasted. At the time of switched all 8 wires need but later only 4 wires work properly.

The difference between cat 5 and cat 6 :

Cat 5 and Cat 6 are using for various purposes. These are common ethernet cables. The common activities of this two cable are both are working as a cable for electric networking. This tool uses for connect

  • Computer
  • Server to Modem
  • ISP

Cat cables are generally popular for virtual networking. The Cat 5 and 6 both are capable for high-level performance.

About Cat 5:

Cat 5 Cable is divided into two segments:

  1. Cat 5 Cable
  2. Cat 5E Cable

Cat 5 is quite out dates in last few years.This cable can handle up to 10/100 Mbs with 1000MHZ bandwidth version. It helps the performance faster.

In another hand, Cat5E cable is invented from 15 years ago. This is the updated version of Cat 5. The performance is standard and improves the functions. It helps to get fast speed and make the network to flow high-level performance. So significantly it keeps a distance without impact by crosstalk.

About Cat 6 Cable:

This cable is the backbone of primarily related networking. Cat 6 has 10 Gigabits data, which bandwidth 164 feet long single cable can serve high-level performance.

Cat 5 Features:

  • 1GB speed of 100 meters
  • 250 MHZ frequency
  • More crosstalk during cable construction
  • Need faster change or update

Cat 6 Feature:

  • 10 GB speed Data with 55 Meters
  • 550 MHZ Frequency
  • Less Crosstalk
  • Future proof and most updated.

Difference between Cat5 and Cat5E :

Cat 5E Ethernet cables are the updated version of Cat 5. Cat5E is more strong, faster and reliable data flow through the network. In generally Cat 5 is flow data 10-100Mbps speed but Cat 5e the updates version has strength data flow up to 1000 Mbps. Yes, there have major differences between the two cables. Let’s see the differences in below:

Cat-5 and Cat-5e Features and Performance:

  • Performance:

Cat-5: Crosstalk rate is great in number.

Cat-5e: Crosstalk rate is less than Cat 5.

  • Speed:

Cat-5: 100 Mbps

Cat-5e: 1000 Mbps

  • Cost:

Cat-5: Little cheaper than Cat 5e

Cat-5e: 0.20-30 ($) per foot

  • Frequency:

Cat-5: 100 MHZ

Cat-5e: 100 MHZ

  • Cable Length:

Cat-5: 100 Meters

Cat-5e: 100 Meters

  • Future Use:

Cat-5: Limited

Cat-5e: Adequate

So we can see the feature and performance between Cat 5 and Cat 5e Ethernet Cables. Looks Frequency and cable length are same. Remember Cat 5e is the updated version so the manufacturer only changes the internal subsystem. The differences can identify the performance, speed, cost and future update.

  • Cat 5e performance has less crosstalk so potentially also good from Cat5.
  • Speed is much improved and faster than Cat 5. Cat5e has 1000 Mbps that easy to identify its speed variation.
  • Cost determined by per feet length of cable, which is also not at a higher rate.
  • The future use of Cat5e is better than Cat5, but it will not compete with Cat 7. At present Cat 7 I the latest version so both Cat 5 and 5e does not meet the future optimum target.

VIDEO: How To install a CAT5E Network Faceplate Socket and How To FIX a wiring FAULT

In circumstances, Cat 5 and Cat 5e Ethernet network cable both have a great feature to come. At the time of creation and market first introduced, it has a great demand. Later, Cat 5e comes with the update. These two cables are discovered from 15 years ago. At present, in the 21st century, Cable Cat 7 now comes to the market with great feature. The user would like to choose the updated version of Cat 7 rather than Cat 5, 5e, 6. JR Electronics Provides absolute solution for Fiber Optic Installation Services.


  • David Mullane

    David Mullane


    You have very well explained about CAT5e cables in this blog. Was a great read. Thanks for sharing it here.

    • JR Electronics

      JR Electronics


      Thanks David for your opinion

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