SanDisk Ultra USB 3.0 Pen Drive have very high speed transfer rate(Read Speed: up to 100 MB/s2). The look is good with STYLISH, PORTABLE DESIGN you carry around the drive without worrying about losing a protective cap. But the life of this pendrive is not too long and many time I suffer from this problem. many time I applied for replacement and results again it corrupted.The performance is not bad but I think the life time is not so good.