As one of its daily deals, Adorama via eBay offers the Samsung 850 EVO 500GB Serial ATA 6Gb/s 2.5" Internal Solid State Drive, model no. MZ-75E500B/AM, for $179.99 with free shipping. That's tied with our mention from two weeks ago as the lowest total price we've seen. (It's also a current low by $5.) It features read speeds of up to 540MB/s and write speeds of up to 520MB/s. Deal ends today.