Difference Between UTP and STP

Twisted pair wires are commonly utilized in data transmission, particularly over long distances. Any electromagnetic disturbance that may emerge in the cabling is canceled out by the twist in the cable. Twisted pair connectivity is categorized into two categories: STP and UTP.

All these UTP and STP are frequently utilized for long-distance data transmission. UTP is a connection with braided wires that reduces noise created by an independent factor. But what are the distinctions between the two? This article explains the many types of cables and their peculiarities.


The main difference between UTP and STP is that UTP stands for ‘Unshielded twisted pair’ whereas STP is the acronym for ‘Shielded twisted pair’. Even though the engineering and manufacturing style of both are distinct, each fulfills the same goal. The primary distinction between UTP and STP would be that UTP (Un-shielded twisted pair) is a connection with twisted conductors that reduces noise and interference. STP (Shielded twisted pair) is a type of cable encased in a foil or mesh shielding that protects the line from electronic radiation.


UTP transmission medium is a form of coaxial cable. It is an abbreviation for Unshielded twisted pair. For its acceptable frequency band, UTP is used to transport both information and speech. UTP does not require a connecting cable, and it requires less maintenance, making it more cost-effective.

STP, which represents ‘Shielded twisted pair’, is another sort of twisted ensemble. A neutralizing cable is needed for STP. Shielded Twisted Pair (STP) requires significantly more management than Unshielded Twisted Pair (UTP), hence it is much more expensive (UTP).

A metallic shield shields cables from radio and electrical noise in STP. This improves reliability and accelerates data transfer in facilities using microwave equipment, HVAC, or two-way radios.

Comparison Table Between UTP and STP

Parameters of ComparisonUTPSTP
Full FormUTP stands for  ‘Unshielded twisted pair’. UTP transmission medium is a form of coaxial cables.STP, which represents ‘Shielded twisted pair’, is another sort of twisted ensemble.
Grounding CableA grounding cable placement is not required for a UTP cable.A grounding cable placement is essential for a STP cable.
MechanismThe cable wires are intertwined and twisted together.The twisted pair of cables are coated with foil or shield.
DeploymentsPlaces that are less prone to electrical noise and interferences like offices and apartments.Locations with significant electromagnetic interferences like airports, railway stations and factories.
PriceUTP is cheaper and needs less maintenance than the STP.STP is costly.

What is UTP?

The most common form of transmission media in use nowadays is unshielded twisted-pair (UTP) wire. Its frequency band is suited for both internet and phone transmission. As a result, they are by far the most widely utilized in communications services.

Twisted pairs are made up of two insulators coated conducting agents (typically copper) that are twisted together. Color stripes are used to identify plastic encapsulation. Colors can also be used to identify particular conductors in a wire, as well as to show which conductors belong in pairings and how these relate to other pairings in a bigger bundle.

The two wires of the coaxial cables are braided, which considerably decreases the noise emitted by the external entity. Noise is produced when cables are interconnected, resulting in a rise in operating voltage in the cable nearest to the source, as well as an unequal load as well as a corrupted transmission.

Because of its reduced cost, UTP cable is the most common and widely utilized cabling in most homes, workplaces, and even big organizations. As a consequence, it is broadly applied in telephones, desktops, and other electronic devices.

What is STP?

Every set of conductive material is shielded (STP) wire is wrapped in a woven mesh covering or metal alloy. The metal shell prevents electrical noise from penetrating. A shielded twisted pair wire is a form of coaxial cable that has an additional covering foil or metal braid coat to prevent it from flaws such as cuts, loss of frequency, noise, and message to disturbance. Because it is a cable that is typically utilized underground, it is more expensive than UTP.

It allows for better data transfer rates over extended distances. It is also referred to as a cable with a metallic sheath or coating that surrounds each pair of conductive material to protect them from multiple stakeholders and to prevent radio noise from entering.

The most significant disadvantage of utilizing STP cables is the greater expense. Cladding is an extra material that comes into every meter of wire, increasing the overall cost. The insulation also adds weight to the wire, making it more difficult to bend or alter in any manner. This is not a major issue, and it is something that users ought to be aware of when deciding between STP and UTP.

Main Differences Between UTP and STP

  1. UTP stands for Unshielded Twisted Pair whereas STP stands for Shielded Twisted Pair.
  2. UTP is cheaper than STP wires.
  3. UTP does not require a grounding cable during its placement whereas STP requires a grounding placement as it can help in increasing the resistance capacity of the wire from electromagnetic interferences.
  4. UTP cables are bad in maximizing the general bandwidth of the data frequency but the STP cables do a better job at increasing the general bandwidth.
  5. UTP cables are quick to set up, however, STP cables are harder to configure since they are larger, heavier, and firmer.


It doesn’t really matter if you are using STP or UTP for most typical applications because both are likely to operate effectively. UTP is by far the more natural choice because it is cheaper and less difficult to find in most central computer stores.

The design and construction of UTP versus STP cables vary, with STP cables having an extra metal foil encased in electrical conductors. Nevertheless, both STP and UTP connections have advantages and weaknesses when it comes to correct maintenance and repair in a suitable context for their own use.


  1. https://digitalthinkerhelp.com/stp-cable-shielded-twisted-pair-types-uses-advantages-disadvantages/
  2. https://www.techwalla.com/articles/what-is-utp-cable
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