The storage capacity has increased in recent times and will keep increasing to meet the customer demands like archiving huge amount of data, such as video content. A demand for larger storage capacity requires a higher access speed. This is because the users would expect same speed to transfer a single content, even if its the data size increases. Thanks to a brand new storage device, the Universal Flash Storage (UFS) provides six times more bandwidth than eMMC 4.5. It is expected to fulfill the requirement of high performance storage device.