Newegg offers the Seagate 4TB Expansion USB 3.0 External Hard Drive, model no. STBV4000100, for $129.99. Apply coupon code "EMCWHWD55" to drop it to $119.99. (
Amazon charges the same.) With free shipping, that's the lowest total price we could find by $6, although we saw it for $3 less in October. Deal ends December 22.