240GB 2.5-inch internal SSD, SATA 6.0Gbs, with blistering speeds of 540 MBs Read, 500 MBs Write. Enjoy the efficiency of Next-Gen Micron 3D NAND Crucial BX500 uses only a minimal amount of power and still delivers a high price-to-performance. Upgrade to a drive you can count on The Crucial BX500 has been thoroughly Tested, and Proven that, it secures your most important files on a drive with established dependability and the advanced features BX-series SSD's which is are known for. Avoid unintended data loss when the power unexpectedly goes out. This built-in feature of our new NAND protects your data swiftly and efficiently, so if your system suddenly shuts down, you keep all your saved work. Improves battery life because its 45x more energy efficient than a typical hard drive and it can operate in an input voltage of 4.5V.