BuyDig offers the Seagate 3TB Expansion USB 3.0 External Hard Drive, model no. STBV3000100, for $119.95. Check out with V. me by Visa and apply coupon code "VMEMOMDAY20" to cut it to $99.95. With free shipping, that's $0.03/GB and the lowest total price we could find by $4, although we saw it for $2 less in our expired mention from four days ago. It features built-in power management.