The 250GB Mercury Electra 6G 2.5" Internal SSD from OWC / Other World Computing comes compatible with both SATA 6 Gb/s and 3 Gb/s interfaces allowing you to plug this drive into a variety of PC configurations. Take advantage of sequential reads up to 522 MB/s and sequential writes up to 463 MB/s. The Mercury Electra drive comes equipped with a 4-Ch controller for enhanced drive performance. Additionally, this drive supports RAID, SMART, and TRIM technology and ECC functionality to protect your stored data. For long-lasting and power-efficient performance, the internal SSD uses SLC and 2D NAND flash memory. It works as a hard drive upgrade internally and in bus-powered or self-powered external enclosures such as Mac, PC, or enclosures that supports 2.5" SATA drives.