Western Digital Elements 640GB 2.5″ USB Portable Hard Drive for $89.99 Shipped

Western Digital Elements 640GB 2.5″ USB Portable Drive for $89.99 shipped after promo code EMCYNNP63.  Here is a screenshot for your reference.  It does not require a separate power supply and is smaller than most external drives, making it much more convenient to carry around.  Most places have this 640GB portable USB drive for about $99.