Ending today, Newegg offers the Seagate 5TB Backup Plus USB 3.0 External Hard Drive, model no. STDT5000100, for $139.88. Coupon code "NAFBF14A" drops it to $132.89. (Proceed through checkout to see the price.) With free shipping, that's $2 under our mention from two days ago and the lowest total price we've seen. (It's a current low by $2.) It features automatic backup options.