Legit Reviews posted a review on the Samsung 840 Series 250GB SSD

While other SSD makers have been aggressively promoting their products in effort to garner market share, Samsung has quietly been putting out their own drives into the marketplace with largely unperceived success by flying under the radar. Part of this is because, per their literature, as of 2006 they are the number one SSD supplier to OEM PC makers. So they are getting their product out there already installed in machines rather than the bulk of their sales being from bare drive consumer upgrades. Intel also sells a lot of drives this way and is perhaps the chief competitor to Samsung for SSDs in OEM machines. Their 830 Series, which we are already a fan of, has also sold well and has been found to be a sound product in the populace. The 840 Series is the newest from Samsung and they are currently offering a "regular" and a Pro model. The standard model uses new 3-bit-per-cell TLC NAND Flash and the Pro series uses good old 2-bit-per-cell MLC NAND Flash.

  Samsung 840 Series 250GB SSD Review