Model : WDS500G2B0A Device Type : Internal Solid State Drive (SSD) Form Factor : 2.5" Capacity : 500GB Memory Components : 3D NAND Interface : SATA III Max Sequential Read : Up to 550 MBps Max Sequential Write : Up to 525 MBps Features High capacity with enhanced reliability A WD Blue 3D NAND SATA SSD uses Western Digital 3D NAND technology not only for higher capacities (up to 2TB) than the previous generation WD Blue SSDs, but also to help reduce cell-to-cell interference for enhanced reliability. Enhanced power efficiency Offering improved endurance, a WD Blue 3D NAND SATA SSD features an active power draw up to 25% lower than previous generations of WD Blue SSDs. And with less power used, you're able to work longer before recharging your laptop. Superior performance for high-end computing For a variety of computing applications like gaming, HD media playback, or creative software, look to WD Blue 3D NAND SATA SSDs. Western Digital 3D NAND technology helps enable sequential read speeds up to 560 MB/s and sequential write speeds up to 530 MB/s for fast system boot-ups, quick application responses, and rapid transfer speeds. Leading-edge reliability An SSD is designed with no moving parts to help protect against data loss if it is accidentally bumped or dropped. And with 1.75M hours MTTF (mean time to failure), up to 500 TBW (terabytes written), and several error correction technologies, WD Blue 3D NAND SATA SSDs can help guard data for years to come.