Memory size
Total storage capacity. The larger it is, the more information can be simultaneously written to a USB flash drive. For comparison: the size of text documents rarely exceeds 1 MB, audio files and photos usually take several megabytes, short videos — several tens of megabytes, and a DVD-quality movie has a volume ranging from one and a half gigabytes and more. On the other hand, the price of the drive directly depends on this indicator. Thus, many manufacturers have flash drives similar in basic characteristics, differing only in volume — this makes it easier to choose the option that is optimal in terms of price and capacity.
Now on the market there are flash drives with the following volume:
4 GB,
8 GB,
16 GB,
32 GB,
64 GB,
128 GB,
256 GB,
512 GB and more.
Retractable connector
The USB flash drive has a USB plug that can be pulled out of the case during use and hidden in it during storage. This is convenient, first of all, because such drives do not need a protective cap, which can be easily lost; however, on the other hand, retractable connectors are considered less reliable than fixed ones.
