Ending today, Altatac via Rakuten Shopping offers the Samsung 850 EVO 250GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-75E250B/AM, for $79.99. Checkout via MasterPass and apply coupon code "MASTERPASS1" to drop it to $59.99. With free shipping, that's $11 under our Black Friday mention and the lowest total price we've seen. (It's a current low by $18.) It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.
Of note, apply coupon code "CYBERWEEK" to get 560 Rakuten Super Points, which convert to a $5.60 Rakuten Shopping Credit.