In order to constantly meet people’s various needs, both mobile phones and computers are developing towards more functions, faster and more efficient direction; while the software technology of mobile phones and computers is gradually improving, hardware technology is also following; we can find this rule from a simple charging port, from the earliest mobile phones using wide port b-5pin interface, MP3 at that time At present, some old-age computers and cameras still have their own interfaces. Then the interface on mobile phones entered the era of microusb, and the mobile phones under 1000 yuan are basically such sockets. Finally, the interface evolved to the type-C type, making many unprecedented functions of mobile phones come true. Of course, the evolution of the charging interface of computers is more complicated, but at present, the matching interface of light and thin laptops The port type undoubtedly chooses the type-C interface and discards all other interfaces.
As a kind of USB interface, what is the magic of type-C interface? Let mobile phones and computers so favor it, with Xiaobian to understand the magic of this small interface.
1. Two way power supply
The full-function usbtype-c interface includes four pins, which are specially used for power supply and grounding. According to the USB power supply specification, it can support up to 20V * 5a, that is, 100W power, which makes the mobile phone realize the super fast charging function. At the same time, type-C can also provide reverse power supply to the connected equipment to provide working current.
2. Positive and negative pluggable
Usbtype-c interface is symmetrical, and the function of each pin is also symmetrical, so it allows positive and negative pluggable, which completely solves a worldwide problem: USB interface can never be plugged in; small changes bring great convenience to life.
3. Transmission rate
Usbtype-c supports USB2.0, usb3.1genl (maximum transfer rate 5Gbps) and usb3.1gen2 (maximum transfer rate usb10gbps). The transmission rate of full-function type-C interface is about 20 times that of USB2.0, which ensures that it can adapt to high-speed transmission environment, such as high-definition video data transmission.
4. Extended functions
Because the type-C interface has the above characteristics, it has very strong expansion ability. Take Shanze multi-function dock as an example, a type-C interface of a computer or mobile phone can be easily expanded to:
USB 3.0 interface: This is the most commonly used interface, which can be connected to USB flash disk, mouse, keyboard, mobile hard disk, Bluetooth adapter, etc;
PD fast charging port: let the computer always full power, don’t be afraid that the docking station will consume the power of the notebook, so you can rest assured to play;
Memory card slot: can easily read TF / SD card, solve the problem of reading card;
Gigabit network port: can be used to connect cable network, bid farewell to poor network speed, card, slow, let the game / Office / download unimpeded;
HD video interface: mobile notebook can be connected to projection and TV, small screen second to large screen;
Audio output: independent audio output interface can be connected to headphones, audio and other equipment.