Do you need the portable hard drive?  Well, Western Digital My Passport Essential Portable Hard Drive can be the great choice for you.  This portable hard drive is complete with 250 GB USB 2.0. The Western Digital My Passport Essential Portable Hard Drive is simple to use, light and easy to carry.  Do you want to know how it is working?  Well, this portable hard drive requires no power adapter because it is powered directly through the USB cable and works with Windows and Mac. Isn’t it great? You can …