For its newsletter subscribers only, newegg offers the Seagate Expansion 3TB USB 3.0 External Hard Drive, model no. STBV3000100, for $139.99. Coupon code "EMCNDHA35" cuts it to $125.99. With free shipping, that's $0.04/GB, the lowest total price we could find by $9, and tied for the least expensive Seagate Expansion 3TB USB 3.0 hard drive we've seen. Deal ends July 1.