I purchased the Western Digital hard drive as a backup and storage drive. I have had this drive for several months. It is nearly full but it still working as fast as new. Even the cable has not given up which I thought was a possibility upon reading several reviews about this drive. The drive connects immediately after plug in without any lag period. It is very sleek, smaller than the size of a pocket book and actually slide into a pocket. This was very important for me during traveling. It is a very quiet one that I forget that it is even there and I never seen it heat up. It does not have to be plugged into the wall as it powers up from the laptop/desktop. I used to have a transcend drive before I bought this WD drive. They are world apart when it comes to ease of using it. Transcend was slow and noisy and had issues while connecting to my laptop. Backing up used to be a “task” with transcend. I am getting a second WD soon to separate work files from the others as this one nearly full. It is powerful and compact drive and I am pleased with it.