Samsung P3 USB 3.0 Portable Hard Drive for $59.99 shipped after coupon code MASTERPASS10 as detailed here. Here is a screenshot before the $20 discount for your reference. This portable USB drive features USB 3.0 interface, which is backward-compatible with USB 2.0 and much faster data transfer rate. This portable USB drive is USB powered so there is no need to carry an AC adapter. Most places have it for about $80.