Newegg via eBay offers the Samsung 850 Evo 500GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-75E500B/AM, for $149.99 with free shipping. (Amazon charges the same.) That's $3 under our mention from earlier today and the lowest total price we could find by $26. It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.