Universal Serial Bus (USB) is a standardized cable that establishes specifications for cables and connectors for connection, communication and power supply (interfacing) between computers and other devices.

A USB cable is omnipresent in our plugged technologically advanced world and is owned by almost everyone nowadays as it enables devices to connect with a host of other electronic devices.

Based on physical design of ports and plugs of an USB cables it has been divided into the following three types:


Type A is the most popular type of USB standard in all cables which is rectangular in shape and mostly seen in host devices, media players, charging adapters etc.


Type B USB connectors are seen on the other side of USB cable, plug into a peripheral device like hard drives, smartphones etc. Type-B USB socket can be divided into standard, mini and micro. They all have the same function but feature different physical shapes suited to their implementation on devices.


Type-C is quite similar to the existing Micro-B USB variant. Due to its small size, it can easily fit into even the smallest of peripheral devices that we use today. One of the many advantages of Type-C over other existing variants is that it allows for ‘reverse plug orientation’, which basically means that you can plug in your USB cable correctly every time on the very first try! Its plug is made in such a way that you can stick it inside the slot without worrying about it being upside down.

Choosing the right type of USB cable is necessary. USB chargers impact how quickly your device's battery will be fully charged. Choosing the right USB cable for your smartphone is important for a safe and quick charging experience. Cheap USB cables can be slow, and even dangerous. One key concern is the cables physical resilience. The life of your phone is dependent on the quality of the data cable you choose.


Length :

The length of USB cable is directly proportional to data transmission and charge speed of smartphone. If we take the same material, the shorter the length of data cable, the faster the potential data transmission and charging speed and the smaller the resistance.


There are many different materials used in USB cables. The electrical contacts, the internal wires, and the outer insulation vary in composition from one manufacturer to another. Here are some of the most common materials found in USB cables:

  • PVC is quite common material used for making USB cables. It's non-flammable, strong, and weather-resistant. However, many manufacturers are moving to TPE, which is even more durable.
  • TPE is a plastic which has good elasticity and strength. It is environmentally friendly because the waste materials in its production can be recycled. At present, most of the original USB cables that come packaged with smartphones use TPE.
  • Nylon is a special fabric material added to USB cables to ensure that the copper core inside the mobile phone cable is not damaged due to external tension. Nylon braided USB cables are not easily damaged. It is very strong, firm, and in the right applications, very attractive.
Thickness of Cable:

The internal wires of the USB cable can affect charging speed. The thicker the wires, the lower the resistance, lending to a greater maximum current and faster-charging performance. However, these wires need to have a woven metal sleeve to shield against magnetic interference. This has the added effect of protecting the wires from physical damage.


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