Difference Between Similar Terms and Objects

Difference Between UTP and STP

UTP-cable-pd-450UTP vs STP

Twisted pair cables are widely used in transmitting information, especially across great distances. The twist in the wire cancels out any magnetic interference that may develop in the wiring. There are two common types of twisted pair cabling, STP and UTP. The S stands for Shielded, the U stands for Unshielded, and the TP stands for twisted pair for both. STP simply has additional shielding material that is used to cancel any external interference that may be introduced at any point in the path of the cable. UTP cables have no protection against such interference and its performance is often degraded in its presence. Using STP cables ensure that you get the maximum bandwidth from your cabling even if the external condition is less than ideal.

The biggest drawback to using STP cables is the higher cost. The shielding is an additional material that goes into every meter of the cable, thereby raising its total cost. The shielding also makes the cable heavier and a bit more difficult to bend or manipulate in any way. This is not a big issue but something that users should know when choosing between STP and UTP.

In terms of usage, UTP is the more prevalent and popular cabling that is used in most homes, offices, and even in large scale businesses due to its lower cost. STP is commonly used by large scale companies in high-end applications that require the maximum bandwidth. STP cables are also used in outdoor environments where the cables are exposed to the elements and manmade structures and equipment that may introduce additional interference. Good examples of this would be the telephone/internet cables that run from your home, to the junction box, down to the establishments of your provider or ISP.

For most common uses, it does not really matter whether you use STP or UTP as both would probably perform well. UTP is the more logical choice as it is cheaper and much easier to find in the majority of computer equipment retailers.


1. STP cables are shielded while UTP cables are unshielded

2. STP cables are more immune to interference and noise than UTP cables

3. STP cables are better at maximizing bandwidth compared to UTP cables

4. STP cables cost more per meter compared to UTP cables

5. STP cables are heavier per meter compared to UTP cables

6. UTP cables are more prevalent in SOHO networks while STP is used in more high-end applications

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  1. i need stp’s categories could someone help to find…

    • Category 4: its data rate is 16 and used by Token Ring-16
      Category 5: its data rate is 100 and used by 100Base-T Ethernet
      Category 7: its date rate is 600 and used by 1000Base-T Ethernet

      • cat 3 : its data rate is 16 mbps
        cat 4 : its data rate is 20 mbps
        cat 5 : its data rate is 100 mbps
        cat 5e (enhanced) : its data rate is 1 Gbps
        cat 6 : its data rate is 10 Gbps
        cat 6e (enhance): its data rate is 10 Gbps
        cat 7 : its data rate is 10 Gbps
        cat 7e : its data rate is 10 Gbps (stp)


  2. its great

  3. Very impressive

  4. very useful information for ethernet users

  5. very usefull article shared for users understanding

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