Adorama via eBay offers the Samsung 850 Evo 500GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-75E500B/AM, for an in-cart price of $149.99 with free shipping. That's tied with our mention from four days ago as the lowest total price we've seen. (It's also a current price low by $16.) It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.