Ending today, Buy.com via Rakuten Shopping offers the Samsung 256GB 840 Pro Series Serial ATA 6Gb/s 2.5" MLC Internal SSD, model no. MZ-7PD256BW, for $155.99. Coupon code "4EAF2DD" cuts it to $139.99. Plus, apply coupon code "LIGHTNING" to yield 2,100 Rakuten Super Points, which convert to a $21 Rakuten Shopping credit. With free shipping and assuming you use the credit, that's $21 under our mention from last week and the lowest total price we've seen for this SSD. (It's also a current price low by $37.) It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.