Answer： Note: don't know if you have encountered after the flash disk inserted into the computer can not open, double-click it is    prompted for formatting the situation? general , confronted with this situation you to buy more to increase flash drive. Many fake flash drive, through the software can    be modified by "memory Capacity "and" brand ", "type". Please according to the "product testing" section to provide "how to test for flash drive Whether is enlarge? "Approach to buy their own flash drive for testing.  

Answer： Note: Flash chip on the market, often have a "solid". Many do not understand the industry friends in asking, what is solid Belt. To be honest, if buy is fixed with the chip of usb flash disk, so congratulations you, your flash drive is    unqualified, at least 80% than the market Ok except (original). Fixed belt, English name GOOD DIE, is the chip can be used. Solid band and the difference between original wafer have    completely factory test. Because the number of chip manufacturers, and test more time, so the chip factory just after simple e-test, directly Sold to the downstream assembly house for encapsulation, on a chip is not typing, are white flour, so solid belt is also    referred to as the white pieces. It is good to original piece, but the price is relatively expensive. Solid piece while it is being the possibility of    instability (because only by electrical measurem

Answer： Note: with the development of mobile storage technology, increasingly, the capacity of the flash drive is more and more    big, the reading and storage is more and more fast, more and more small volume, Be an integral portable tools - a lot of office worker. Consumers how to correctly choose and buy flash drives,    professional market branch of law enforcement personnel To consumers with several recruit: First of all, the choose and buy when the flash drive, as far as possible choose relatively well-known manufacturers    products at home and abroad, and ask for invoice and credit card, try to buy the warranty Long time brand usb flash disk. The roadside stands on flash drive capacity is very big but the price is very low, is    inferior product. Second, when buying flash drive - need to put on the computer on the spot, check the capacity, to check its speed. 4 g    flash dr

Answer： Description: USB 3.0 interface type A male mouth mouth, type B, type AB universal mother mouth and B mother four mouth,    the concrete appearance shape are different. USB 3.0 specification supports two kinds of medium interface, light and copper cable length and transmission speed will    also be so. With the rest of the interface Has many advantages compared to start, its most important two advantages, is the transmission speed and compatibility. See the speed of the transmission rate at around 5 GBPS, namely 640 MB/s, and compatible with USB2.0 down, is about now    mainstream USB2.0 interface Transfer rate of 480 MBPS (i.e., 60 MB/s) ten times; Compared with USB2.0, transmission speed up considerably.

Answer： Note: Type A USB interface: responsible for connecting the computer, is the data input or output channel. Flash memory controller: provide a USB device controller and communication with the flash interface. The controller    contains a RISC microprocessor and ROM (Read - Only Memory) and RAM (Random Access Memory), also be responsible for the management and coordination of components    of various movements instructions, And make the computer will flash drive recognition as a "removable disk", is the "brain" flash drive. The market at    present the mainstream of flash memory controller maker Group (Phsion) and cosmic rong (SMI), safe (Alcor) shimmering (Innostor), silver, etc. Flash Memory chips: mainly for the NAND Flash, its principle and the principle of computer Memory chips in the basic same,    is to save the data entity, Used were not easily gone storage technol

Answer： Description: flash drive is a kind of the universal serial bus (USB) interface (USB) interface without physical drives    miniature high-capacity mobile storage products, It USES Flash Memory (Flash) Memory storage medium, via USB connect with computer, realize plug and play (also called hot    plug). In early November 14, 1999, shenzhen east gathered into technology co., LTD. (hereinafter referred to as the "Oriental to    science and technology") to the state intellectual property office Formally submitted a flash drive the original basis of an application for a patent for invention, and in 2002 July 24    authorized. Since 1998, due to the universal serial bus (USB) interface with plug and play, simple interface, high data transfer rate,    etc, Appear and gradually prevailed on the computer, the corresponding support USB portable storage equipment - flash drive

Answer： Description: believe that there are a lot of friends in the process of using a flash drive will find flash disk storage is slow and the flash drive symbols often in PC display for EXE format, behave like a poisoning. This is because got expansion caused by flash drive. Expansion and then, what is a "flash drive", it will bring what harm, how can we tell? One, the expansion of the flash drive concept Capacity flash drive refers to let a small flash drive capacity with related software displayed on the computer capacity is very big, such as the flash drive show the actual capacity of 512 m 2 g), but the extra memory capacity can be normal use. When deposited in the file is more than the actual capacity, is stored in the extra capacity region of the file is not available, the file be kao out will be damaged. Second, the expansion of the flash drive Capacity flash drive capacity because of its actual capacity is small, so very prone to errors in the process of c