Samsung 840 Pro Series MZ-7PD256BW 256GB Solid State Drive for $179.99 shipped. Here is a screenshot for reference. This internal SSD drive features TRIM and RAID support, up to 530MB/s read and 390MB/s write speed and uses SATA III interface. Note that this is one of the higher-end and very well reviewed SSD for its performance. Most places have it for about $199.