The crucial m4 mSATA SSD delivers all of the award-winning performance and reliability of the crucial m4 SSD - in a drive that's an eighth of the size. Measuring in at about one-third the size of a standard business card (3cm x 5cm), the crucial m4 mSATA is designed primarily for ultrathin laptop users who want to dramatically increase their system's performance. Because of its small form factor, the crucial m4 mSATA SSD can do things that hard drives and other SSD's often can't: it can serve as a primary storage device in ultrathin laptops, it can attach directly to the mSATA socket on your system's motherboard (freeing up a hard drive bay), or it can act as a cache to complement the performance of an existing hard drive. Offering lightweight construction, inherent power savings, travel-worthy durability, and validation for intel smart response technology, the crucial m4 mSATA SSD packs powerful performance in a tiny mSATA form factor.