USB connector
USB stands for Universal Serial Bus, a common standard launched in 1996. Before this, there was a much wider variety of different connectors commonly used for linking PCs and compatible hardware. Examples you might be familiar with include multiple versions of serial ports, D-Sub, and parallel ports.
The body responsible for developing, maintaining, and updating the USB standard is called the USB Implementers Forum, or USB-IF. To date, there have been four main generations of USB released: USB 1.x (which had various subcategories), USB 2.0, USB 3.x (again, with subcategories), and USB 4. You will often see these referred to as USB gen 1, USB gen 3, and so on.
Waterproof USB connector
A waterproof USB connector is a type of USB connector that is designed to resist water or other liquids, protecting the device from damage. These connectors are commonly used in outdoor or marine environments, where exposure to water is common.
There are various types of waterproof USB connectors available on the market. Some are designed to be fully submersible and can withstand immersion in water for a certain period of time. Others may be designed to be splash-proof, which means they can resist water splashes and sprays but may not be fully submersible.
When choosing a waterproof USB connector, it is important to consider the level of waterproofing required for your specific application, as well as the type and size of the connector needed to fit your device. It is also important to ensure that the connector is compatible with the USB standard that your device uses (e.g. USB 2.0 or USB 3.0).
Overall, a waterproof USB connector can be a useful addition to electronic devices that are exposed to water or other liquids, providing added protection and ensuring that the device continues to function properly in challenging environments