I purchased a 320 GB drive to use as a portable device between my work Dell, home iMac, and Powerbook. My work files are large image-heavy files, pdf's, and powerpoints. Transfer speed is actually very good considering the size of the files I transfer and that this is bus-powered. It transfers happily between the iMac and PC.
In my dream world, I was going to use this drive to back up my lectures and data from my home and work computer so that I could have all my lectures with me at all times (plus as back-up in case of disaster). While Apple Time Capsule MB276LL/A (AirPort Extreme Plus 500 GB Storage) is easy to use, it is pricey and not readily portable - so in case of fire or theft, it does me no good. So, this seemed the easy solution. Unfortunately, my Powerbook does not generate enough power to run the drive from one USB port - I need to use USB Power Adapter Y Cable, which is an inconvenience and another expense. There is no self-powered option, which is fine in most instances.
Had I realized this would be an issue, I would have purchased LaCie 301370 500GB Rugged Hard Disk designed by Neil Poulton USB 2.0 Mobile Hard Drive instead. Keeping this in mind, this is a slick hard drive, very portable without any failures after several months of use. A 500 GB model is now offered, which would be a better buy for the dollar.Get more detail about Western Digital My Passport Essential 500 GB USB 2.0 Portable External Hard Drive WDME5000TN (Midnight Black).
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