As the types of electronic products continue to increase, I believe that friends have many charging cables at home, and the interfaces of these cables are still different. Looking at the interfaces of these devices, many people can't name them. The transmission speed, charging speed and functions of each type of cable are also different. Such as USB Type-A, Type-B, Type-C, USB 2.0, USB 3.2, Lightning, etc. Today we will meet these cables that are very common in life and cannot be distinguished.
1, what is USB?
USB cable
USB (Universal Serial Bus, abbreviated as USB), abbreviated as "Tongserial Wire", was jointly proposed by many companies such as Intel , Combat , IBM, Microsoft t and other companies. It is an interface technology that supports plug-and-play and hot-swap functions on personal computers (PCs) and mobile devices (mobile phones, etc.).
USB Every once in a while, new standards will be launched. Among them, our more common USB is divided into:
USB2.0 USB3.2 USB4.0
2. Understand cables (USB Type-Ch, Lightning, etc.)
1, USB Type-A
USB Type-A
USB Type-A is currently widely used interface and is also the most common one, such as computers, mice, keyboards, etc. One of the disadvantages is that they have to be divided into front and back, and it is difficult to insert them right at once.
Mini-A
In addition, Type-A has two forms: Mini-A and Micro-A. They are basically eliminated and are almost invisible on the market. The difference between
USB Type-A 2.0 and USB Type-A 3.0:
USB Type-A 2.0 is composed of 4 pins side by side. In addition to the 4 pins below, 3.0 has 5 pins on the upper row. It can also be distinguished by color. Razer computers' USB Type-A 3.0 generally uses green, some manufacturers use red, and more manufacturers use blue.
2, USB Micro-B
USB Micro-B 2.0
USB Micro-B is one of the types of USB Type-B. It was once a globally unified standard charger, mainly used for mobile phones, tablets and other mobile devices. Until Android phones have adopted USB Type-C in recent years, USB Micro-B has gradually entered history.
USB Micro-B is also divided into 2.0 and 3.0. Micro-B 2.0 is single-headed and 3.0 is double-headed side by side, which is more common on external hard drives.
USB Micro-B 3.0
The above two interfaces are relatively thick, and the front and back sides should be distinguished when unplugging and plugging, and the transmission speed is also relatively slow.
3, USB Type-Ch
Type-Ch
USB Type-C, also known as USB-C, is currently a unified direction that all manufacturers and users are looking forward to. For example, EU has issued new regulations, forcing mobile phones and other electronic products to use USB Type-C charging interface. Since USB 3, USB4, Thunderbolt 3, and Thunderbolt 4 currently use USB Type-C as the connector, you should pay special attention when purchasing, and you should not purchase it based on your shape only. You should read the charging speed and transmission capabilities stated in the product instructions to avoid purchasing errors.
4, lightning interface Thunderbolt
lightning interface
The current lightning interface is the same as type-c, but the transmission speed, supported resolution, and charging wattage are all higher than USB Type-C. Equipment that supports lightning interfaces generally have lightning symbols printed.
5 and Apple Lightning interface
Lightning interface is Apple's unique exclusive connector specifications, mainly used in iPhone and previous generations of iPad. The plug is symmetrical, with the same pins on both sides of the upper and lower sides, and can be plugged in both sides of the front and back. The theoretical transmission speed is limited by USB 2.0 up to 480Mbps, as well as new regulations such as the EU. At present, Apple is gradually changing the Lightning interface to a type-c interface.
3. How to choose charging cables and data cables?
data transmission speed, type-c has the fastest speed, which is greater than the lightning and micro-b interfaces. The same ends have type-c lines that transmit faster than other types-a to Lightning or type-a to micro-b lines.
It should be noted that lines with too long lengths will have an impact on the transmission speed, so you should choose carefully when purchasing.
