Custom USB Cables: Understanding the Different Aspects

About Custom USB Cables, Today, USB cables are everywhere and available to anyone.

They have become the driving force for charging smartphones, cameras, and even modern laptops, to name a few.

However, these pieces of equipment come in a wide range of shapes and sizes despite having similar physical features.

In this article, we will look closer at custom USB cables.

What is a USB Cable?

USB, full terminology of the acronym Universal Serial Bus, refers to an industry-standard component used for communicating, connecting, and charging different devices and access. 

Not all USB cables are designed similarly, no matter how alike they seem.

For instance, a pair of USB-C cables may look the same, but both have different capabilities and features, such as transfer and charging speeds.

The USB 2.0 comes with two wires meant for power: the +5 volt and ground and a twisted pair of wires for data transmission.

However, it can only send data in a singular direction at a given time, either upstream or downstream.

Due to the addition of four additional data transfer wires, USB 3.0 may send data simultaneously in both directions. 

Individual USB cables can cover as much as 5 meters, And when it comes to hubs and devices, this length can extend up to 39 meters or six cables worth from the host.

Inside USB cables

Inside USB cables

USB Cable Versions

The following is a breakdown of some of the different USB cable options in the market. 

Transfer speedsDirectionMax power output
USB 1.112MbpsPeripheral direction2.5V, 500mA
USB 2.0480MbpsPeripheral direction2.5V, 1.8A
USB 3.05GbpsPeripheral direction2.5V, 5A
USB 3.110GbpsBidirectional direction2.5V, 5A
USB 3.220GbpsBidirectional direction20V, 5A
USB 440GbpsBidirectional direction48V, 5A
Thunderbolt 340GbpsBidirectional direction100W(up to 5K video output and daisy-chaining)
Thunderbolt 440GbpsBidirectional direction100W(up to 8K video output and daisy-chaining)

USB 3.0 cables can be used on USB 2.0 ports. However,  you won’t get the same transfer speeds and power output as using a USB 3.0 port.

USB logos

USB logos

USB Plug Types

The following are some USB plug types available to users.


It’s common to find USB-A connectors on the end of most USB cables. 

You can use the USB-A connector to transfer data among your devices and charge other gadgets.

However, this only applies to devices that use a USB-A port.



The USB-B is not as readily available as mentioned above or as versatile as most of its counterparts and is primarily used for connecting scanners and printers to computers.

They also have a square shape with beveled exterior corners on top ends.

Finding a USB Type- B port on certain devices is still possible, but it is becoming rare.




In the past, the USB- Mini was the benchmark for various devices until the more advanced micro-USB connectors replaced it.

However, users can still find it on older models of different devices, particularly cameras, game controllers, and MP3 players, to mention a few.

Also, as its name implies, it is smaller than your standard USB but bigger when put up against its main competitor. 




There was a time when the Micro-USB plug was widely adopted, even though it is being left behind quickly in today’s market.

It is tiny, allowing manufacturers to design slimmer versions.

You can see affordable smartphones and accessories like wireless earphones and Bluetooth speakers coming out with micro-USB ports.




You’ll find this USB plug, actually the latest, on most new devices.

It provides faster data transfer speeds and more power output than the previous versions.

And its biggest advantage is that it’s reversible, meaning users can plug it up or down.



The manufacturing process of USB cables

A USB cable comprises two main parts: the connectors and the cable that goes through a handful of processes to be designed.

Below are the several steps involved in creating the various parts.  

Cutting the appropriate cables

The first step is to cut them into the required lengths from unprocessed materials.

Note that they are fairly long and must be cut into lengths of  1, 2, or 5 meters.

Exposing the inner conductor

Cables contain several wires. In addition, to avoid electromagnetic interference, they have to be foiled or braided.

As a result, during the manufacturing process, there will come the point where you expose the inner wires so they can be connected as needed.

  • Begin by stripping the external jacket of the cables.
  • Clear the spiral and braids arrangement by folding them in opposite directions.
  • Once done, you can strip off the foil to expose the wires. 
  • The final thing will be to strip the internal jacket to expose the conductors.

Connecting the wire and terminal

This phase involves soldering electronic materials using tin.

  • The technicians dip the conductor’s endpoint into the solder, then repeat the process with melted tin.
  • They will solder the conductor and the connectors pinpoint. 
  • The final step will be to examine the soldering to determine whether it meets the requirements.

Many prefer to use tin for soldering, primarily due to its low melting point, ideal fluidity, and sturdy copper and iron surface affinity. 


This step is when the technicians cover the conductors and connect joining the pit using an injection molding machine.

  • The first thing is to protect the initial layer using internal injection molding. 
  • The second thing is to place iron shells for additional protection, which is optional. 
  • From here, the technicians will look at the electrical performance of the partly finished products.
  • If all is well with the above step, the technicians will add a final layer of protection using external injection molding. They will also place the logo and tag of the brand. 
  • The last thing will be to conduct another electrical test to determine the cable’s effectiveness. 

Final checking and packaging

This step is when the technicians conduct another test to ensure effective electrical performance.

In addition, they will also look over the cables to determine if there are any flaws.

They will ship out the products for final packaging if there are none. 

Custom-tailored USB-Cable at Cloom

Custom-designed cables come with several features, including grommets, pigtails, strain reliefs, unique colors, logo inserts, and so much more.

In addition, they can be found in different shapes and sizes, like

  • Waterproof panel-mount USB
  • Latching USB
  • Right-angle/ Left Angle USB
  • Up Angle USB/Down Angle USB

USB cables with two plugs

  • USB A – Mini-B cable
  • USB A – Micro-B cable
  • USB A – USB B cable
  • USB A – USB A cable
  • USB Bridged cables

USB adapters

Aside from being configured with all the connectors mentioned above, some of the other kinds of connectors with adapters that this can also happen with include:

  • The BNC Male to USB
  • The 2.5mm to USB
  • The 4-pin MOLEX to USB
  • The 2.1mm DC Plug to the USB
  • The USB to Ethernet/rj45
  • The USB to HDMI 
  • The USB to Serial
  • The USB to Blunt

Custom USB Cables: Host controllers

Many host controllers come with USB-A receptacles; therefore, this cable is usually USB-A to another device.

Cables tend to have names on the alternate ends, which is also true with the USB A plug.

However, certain small host devices have micro or mini-USB receptacles, with the USB-A getting a pigtail adapter. 

Custom USB Cables: USB cable with hubs

The USB cables that come with hubs allow for the connection of several USB hosts into one host port, allowing you to use as many as 127 devices if they can manage the power limitations.

Custom USB Cables: USB extension cord

Devices like WiFi adapters and webcams need to be free.

One way to achieve this is by extending the length of your original USB cable with extension cords with a plug on one end, with the receptacle on the alternate side.

Usually, the maximum cable length is around 5 meters.

Custom USB Cables: Active USB cables

These are 1-port USB hubs with circuitry typically found at the receiving end capable of regenerating signals and transmitting data over long distances.

They also tend to be bus-powered, but longer cables can still have a USB-A connector or an external AC adapter to ensure the signal booster has enough power.

There are situations where the active cable can be daisy-chained, given that power is available for every transceiver in the chain.

People can use standard USB cables with an active cable provided the regular cable does not exceed 5 meters long for the 2.0 components and not more than 3 meters for 3.0 devices.

In most cases, active cables tend to be bus-powered.

However, you may have to purchase an active cable with a separate power adapter to enjoy the maximum 500mA power of their USB port.


USBs have become the new standard for most mobile and laptop devices.

Therefore, understanding how they are made and function is critical if you wish to use them effectively.

For all your custom USB cable needs, contact Cloom Tech.

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