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Cavalry 500GB USB 2.0 Portable Hard Drive for $49.99 Shipped

Cavalry 500GB USB 2.0 Portable External Hard Drive (CAUG25500W) for $49.99 shipped after a $20 rebate.  Here is a screenshot for reference.  This 500GB portable drive is USB powered and does not require an external power supply.  It is also smaller than most external drives, making it more convenient.  Most places have it for about $77 or more.