Newegg offers the Seagate 3TB Backup Plus USB 3.0 Desktop External Hard Drive, model no. STDT3000100, for $129.99. Coupon code "EMCWHHA26" drops it to $89.99. With free shipping, that's the lowest total price we could find by $17, although we saw it for $10 less last month. It features mobile backup and automatic photo saving from social networks.