What are the parameters of the U disk

u disk has a variety of parameters, you must pay attention to these when buying u disk, here is a brief introduction to these parameters and the meaning of the parameters! 1. Storage capacity Storage capacity refers to the maximum amount of data that can be stored in the portable storage product, and is the most critical parameter for portable storage products. General portable storage capacity is 1GB, 2GB, 4G, 8G, 16G, and some higher capacity products, but the price has exceeded the level acceptable to users. Among them, 16MB of portable storage has been basically eliminated by the market; 8G products are the mainstream in the market, the price is within the acceptable range of ordinary users, and it is also the type of capacity that manufacturers introduce the most product types; 64G products are expensive There are fewer user groups and fewer product categories. 2, the number of rewritable times U disk rewritable is the normal life of the U disk, generally UMC particles can be erased more than 10,000 times, while the U disk with SLC particles is up to 100,000 Times. 3, write data transmission rate U disk is connected to the system by the usb interface, the speed of its interface limits the data transfer rate of the mobile hard disk. The current USB 1.1 interface can provide 12 Mbps; the USB 2.0 interface can provide 480 Mbps; the IEEE 1394a interface can provide 400 Mbps; the IEEE 1394b can provide 800 Mbps data transmission rate, but in practical applications for some objective reasons (such as storage devices Whether the quality of the main control chip and the circuit board is excellent, etc.) slows down the transmission rate in the application. In addition, there are interfaces, data transmission rate, compatible operating system, storage medium, working temperature, working humidity, whether it is plug and play, how long the data in the U disk can be stored for a long time, earthquake resistance, etc.