Whether you need it or no, possessing an USB memory stick is compulsory these days. It is a status symbol also reflects the professionalism in you. Many now prefer branded memory devices because of their guaranty and also promotes your image among many people. But before you select a good branded device, keep in your mind that there are many factors you need to think of. The memory chip in your USB memory stick should belong to a good grade and do not buy the one without the grading. Without a proper grade, the memory stick is just a piece of junk and will not be of any use to you. It cannot store the memory nor protect it and in case you bought it paying a good amount of money, then you will regret buying it. Later on you need to get it repaired or in worst scenarios you need o throw it away. So check with the dealer regarding the grade chip and also check its details. After the grading, check for the version of your USB memory stick. The latest version is 2.0 and do not accept anything that is not 2.0. The transfer speeds of the sticks with older versions is very less and it is sometimes better not to have a device at all. Remember to check these in case you are buying a branded USB memory stick.