Mercury Electra SSDs deliver the latest in flash NAND and controller technology, utilizing 3D NAND + SLC caching for long-lasting, power-efficient performance. They offer a powerful combination of performance and reliability for demanding everyday computer users. Global wear leveling algorithms automatically distribute data evenly and manage program/erase count, maximizing SSD lifespan. Static data refresh technology manages free space, gradually refreshing data across the SSD over time, preventing data corruption. Hardware ECC corrects errors for superior data retention and drive life. S.M.A.R.T and TRIM command support. This 6G SATA SSD delivers fast, reliable performance. It works as a hard drive upgrade internally and in bus-powered or self-powered external enclosures (any Mac, PC, or enclosure that supports 2.5" SATA drives, must support 7mm drive height). OWC SSDs have no moving parts, resulting in a quiet, cool, highly rugged storage solution that also offers near instantaneous system response. With real world speeds over to 500MB/s, the OWC Mercury Electra 6G SSD line delivers unbeatable performance.