Newegg offers the Seagate 4TB Backup Plus USB 3.0 External Hard Drive in Black, model no. STCA4000100, for $169.99. Coupon code "14TPLST44" cuts the price to $139.99. (Amazon offers it for the same price.) With free shipping, that's $0.04/GB and the lowest total price we could find by $10, although we saw it for $10 less last month. It features two backup scheduling options and social network sharing.