Changing Temperature, Changing Density. Most matter increases in volume when it gets hotter. For example, if an iron rod is heated, it will get longer and fatter and its density will decrease. This happens because the mass of the rod stays the same, but its volume increases. The increase in the volume of matter with increasing temperature is called expansion. When cooled down, most matter decreases in volume and increases in density. This decrease in volume is called contraction.
USB-C also builds on the new USB 3.1 standard so to all intents and purposes is the connection type that brings in the new power and speed advantages of USB 3.1. USB-C is still backwards compatible with existing USB variants, but that of course requires adapters.
If your flash drive is USB 3.0 but your computerâs port is USB 2.0, transfers will happen at USB 2.0 speeds. (Roughly speaking, USB 3.0 transmits data at 100 MB/s while USB 2.0 transmits at 15 MB/s.) Advertisement. The other thing that affects speed is the type of flash memory and controller used in the stick. The best drives use the same types of advanced controllers and quality of memory that are found in solid state drives (SSD) while cheaper drives use cheaper components, which arenât as good at transferring and storing data. 1  SanDisk Extreme 64GB USB 3.0 Flash Drive With Speed Up To 190MB/s- SDCZ80-064G-G46.