Why are some USB ports red?

Among these, the red USB ports are attracting the attention of many users. So what does the meaning of this color on the USB port mean? Let's find out.

As USB technology has evolved, manufacturers have adopted a color-coding scheme to help users easily identify different types of ports. Blue USB ports typically represent high-speed connections such as USB 3.0 or 3.1 Gen 1. In contrast, red ports not only offer faster data transfer speeds but also support more advanced functions.

Red USB ports usually represent the high-speed standard of USB 3.1 Gen 2 or USB 3.2

Meaning of red USB port

Red USB ports are typically associated with USB 3.1 Gen 2 or USB 3.2 standards, which allow for data transfer speeds of up to 20 Gbps, making them ideal for bandwidth-hungry devices like external hard drives and high-resolution webcams. Meanwhile, USB 3.1 Gen 2 offers speeds of up to 10 Gbps.

The red USB port is notable for its ability to provide higher wattage, allowing power-hungry devices to charge faster. Many red ports are also designed to be “always-on,” meaning they continue to power connected devices even when the computer is in sleep mode. This is useful for overnight charging, allowing devices like Bluetooth headsets, smartwatches, or smartphones to maintain power without the computer being active.

It should be noted, however, that the color coding for USB ports is not standardized, with the exception of USB 3.0. This means that the color of a USB port does not guarantee that it is using a specific standard. For example, a red USB port may be used for older versions of USB such as USB 1.0 or 2.0. Therefore, users should consult their device's documentation to confirm the exact information about their USB port.

Source: https://thanhnien.vn/vi-sao-mot-so-cong-usb-co-mau-do-185250115142648391.htm