Newegg via eBay offers the Seagate Backup 1TB Slim Portable External USB 3.0 Hard Drive in Black, model no. STDR1000100, for $50.99 with free shipping. That's $4 under our mention from a month ago and the lowest total price we've seen for this model. (It's a current price low by $8.) This drive is compatible with Windows and Mac and features pre-loaded backup software. Deal ends June 30 at 11 am ET.