USB4 : all you need to know about the next generation of data transfer standard



Universal Serial Bus, or USB, is the most successful and oldest data transfer and wired energy standard in the tech world, so the new (USB4) standard is the fastest next generation. Especially with the hardware now needing much higher performance.

At the end of last year, USB-IF unveiled the specifications of the new USB4 standard, which it says will be able to achieve speeds higher than 40Gb per second when using approved cables, twice the maximum speed of the USB 3.2 standard.
Here’s everything you need to know about the next USB4 standard:

  1. Faster, bandwidth upgrade:
    The new USB4 standard is supposed to offer twice the speed of the current USB 3.2, which means it will support data transfer speeds of up to 40Gbps when using approved cables, but actual speeds may vary depending on the cables you use.

USB cables are commonly used to send and receive signals from connected devices, yet some devices that use usb4 cable will be able to use a one-way connection, and the DisplayPort 2.0 standard using a USB4 cable can increase the bandwidth to 80GB per second.

This frequency is high enough to support HDR video screens that support 4K display, and some supporting devices will be able to support standard USB-C and Thunderbolt 3 and will also support usb PD charging, which means that smartphones and other devices will be able to charge much faster with cable provided they are designed to support fast charging.

The new t-wire-based support devices can also support three maximum speeds: 10GB per second, 20GB per second and 40GB per second.

2- Will USB4 be compatible with previous versions:
USB4 cables will use Type C connectors, which are compatible with the flat port found on most smartphones and laptops, so you’ll be able to connect a USB4 cable to almost any USB Type C port, but it won’t always work the same way.

For example, a USB4 cable will see a decrease in speed when connected to an old port, and old USB Type-C cables connected to a USB4 port will use the highest transfer speed possible by default but cannot reach the same speeds as a USB4 cable, plus you may need an adapter to use USB4 cables with TYPE A USB ports, the type you normally see in computers.

  1. Why it called USB4?
    According to the CEO of USB Promoter Group, the choice of the USB4 brand was to avoid confusion caused by additional updates to previous USB standards, such as USB 3.1, USB 3.2, and so on.
  2. When will USB4 cables and devices appear?
    No official date has been announced for the launch of the new upgrade yet, but device makers are usually willing to adopt new USB technologies more quickly than other standards, so we are expected to see USB4-enabled peripherals and cables later this year.

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