Newegg offers the Seagate 8TB Backup Plus USB 3.0 External Hard Drive, model no. STDT8000100, for $209.99. Apply coupon code "VCOBF15" and pay with Visa Checkout to drop it to $184.99. With free shipping, that's $15 below our mention from two days ago and the lowest total price we've seen. (It's the best deal today by $44.) It features automatic and mobile backup options.
Note: The coupon can only be used once per account.