If you’re planning of buying a new USB flash drive or are only interested in an upgrade there are plenty of factors that you should consider for you to buy the right unit. These factors include: Capacity This is probably the most important factor that you should consider. To decide on the right capacity to go for you should consider your needs. Flash drives come in different capacities such as 2 GB, 4 GB, 8 GB, 16 GB, and 32 GB. Different capacities are ideal for different files. For example, 2 GB, 4 GB and 8 GB drives are ideal for text documents, JPEG photos meant for online use, and other smaller files. 32 GB flash drives are ideal for large files such as videos and art files. You should know your needs for you to buy the right unit.