Very valent impression corrugated aluminum sheath, very quiet, is barely warm during operation, transfer values in practice of about 100 MB / s read / write; It is important the drive work on a USB 3.0 port to operate (mostly inside colored blue) and to make sure that a corresponding USB driver is displayed in Device Manager! Additionally, it should be activated in the hardware characteristics of write cache. Real usable are 931 GB. On a 64bit Win7Pro the HDD is detected immediately and is ready for immediate use.