As you begin the process of shopping for a new memory stick, you will find that each is given an “X” factor, which relates to the performance of speed. The rule of thumb is that memory cards with higher X ratings would perform at a much faster rate.  However, this performance is often displayed as megabytes or gigabytes per second. For you to determine what this is, unless stated by the manufacturer, you first need to understand the “X” factor. While this might sound a little complicated, it is rather simple.

A great example would be purchasing a digital camera. If the memory card offers a higher read/write speed than the device, you would end up with poor or less than good performance. This means buying a fast card for your camera would not improve the overall performance. The best option is to start by buying a good device so you can match it with a good USB memory card. With this, photos or video would transfer much faster when being downloaded to your computer. When you buy your new electronic device, ask the manufacturer at that time the best option for a memory card.