Buy.com via eBay offers the Samsung 1TB 850 Pro Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-7KE1T0BW, for $549.99 with free shipping. (Amazon has it for the same price.) That's tied with our expired mention from two days ago and the lowest total price we could find by $85. It features read speeds of up to 550MB/s and write speeds of up to 520MB/s. Deal ends October 20.