What is the standard interface for plugging in a USB flash drive on a computer?

The interface for plugging in a USB flash drive on the computer is usually a USB standard interface. The full name of U disk is USB flash drive. It is a miniature high-capacity mobile storage product that uses a USB interface and does not require a physical drive. It can be connected to the computer through the USB interface to achieve plug-and-play. The U disk is mainly composed of a shell and a movement. The movement includes a PCB, USB main control chip, crystal oscillator, chip resistor, capacitor, USB interface, SMD LED (not all U disks have it), FLASH (flash memory) chip.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The interface for plugging in a USB flash drive on the computer is usually a USB standard interface.

Introduction to U disk composition

U disk, the full name is USB flash drive, and its English name is "USB flash disk". It is a micro high-capacity mobile storage product that uses a USB interface and does not require a physical drive. It is plug-and-play by connecting to the computer through the USB interface. The name U disk originally came from a new type of storage device produced by Netac Technology, called "U disk", which is connected using a USB interface. After the U disk is connected to the USB interface of the computer, the data in the U disk can be exchanged with the computer. Since Netac has registered patents for equipment with similar technology produced later, it can no longer be called "U disk" and is renamed the homophonic "U disk". Later, the name U disk became widely known because of its simplicity and easy to remember. It is one of the mobile storage devices.

U disk composition

## The composition of the #U disk is very simple, mainly composed of the shell movement, including:

1. Movement: The movement includes a PCB USB main control chip crystal oscillator chip resistor, capacitor USB interface chip LED (not All USB flash drives have a FLASH (flash memory) chip.

2. Shell: classified by material, including ABS plastic, bamboo, metal, leather case, silicone, PVC software, etc.; classified by style, including card, pen, mini, cartoon, business, simulation, etc. ; Classified by function, including encryption, anti-virus, waterproof, intelligence, etc.

USB interface introduction

Universal Serial Bus (English: Universal Serial Bus, abbreviation: USB) is a serial bus standard and A technical specification for input and output interfaces, which is widely used in information and communication products such as personal computers and mobile devices, and has been extended to photographic equipment, digital televisions (set-top boxes), game consoles and other related fields. The latest generation is USB4, with a transmission speed of 40Gbit/s, a three-stage voltage of 5V/12V/20V, and a maximum power supply of 100W. The new Type C interface allows blind plugging of the front and back.

USB devices mainly have the following advantages:

1. Can be hot-swapped. That is, when using an external device, the user does not need to turn off and on again, but can directly plug in the USB when the computer is working.

2. Easy to carry. Most USB devices are known for being "small, light and thin", which is very convenient for users to carry large amounts of data with them. Of course, USB hard drive is the first choice.

3. Unified standards. Common ones are hard drives with IDE interfaces, serial mouse and keyboards, and parallel port printers and scanners. But with USB, these application peripherals can all be connected to personal computers using the same standards. Then there are USB hard drives, USB Mouse, USB printer, etc.

4. Can connect multiple devices. USB often has multiple interfaces on personal computers, which can connect several devices at the same time. If you connect a USB HUB with four ports, you can connect it again; four USB devices, and so on, you can connect as many times as you want. , connect all your home devices to a personal computer at the same time without any problems (note: can connect to up to 127 devices).

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