Western Digital My Passport Portable External Slim External Hard Drive 2.5 "Extra Slim USB3.0 / USB2.0 1TB Silver (Accessory)
The disk is fast, on long backups it cools better with the aluminum casing than others. I have the same problem as with the other WD My Passport ultra bought recently: namely the disk disappears into sleep the computer. But he did not reappear at wak