BuyDig offers the Samsung 256GB 830 Series SATA 6Gb/s 2.5" Internal SSD, model no. MZ-7PC256B/WW, for $164.99 with free shipping ($0.64/GB). That's the lowest total price we could find by $5, although we saw it for $10 less yesterday, since expired. (For further comparison, most stores charge $170 or more.) It features read speeds of up to 520MB/s and write speeds of up to 400MB/s.

Of note: BuyDig also offers the same SSD bundled with a laptop kit or desktop kit for $174.99 with free shipping.