2 TB 2.5" 5400 RPM Serial ATA III Laptop HDD Storage drive buffer size: 128 MB 6 Gbit/s 90 g FOR EVERYDAY COMPUTING WHILE ON THE GOBuilt to WDs high standards of quality and reliability, WD Blue mobile hard drives offer the features that are ideal for your everyday mobile computing needs. A Modern ClassicDesigned and manufactured with technology found in WDs original award-winning desktop and mobile hard drives.Every Drive Has a PurposeAvailable in a broad range of entry-level capacities, cache sizes, form factors and interfaces.Tested in Our Lab for CompatibilityWe test hundreds of systems, configurations, and a multitude of platforms to give customers confidence in our drives.AS MUCH STORAGE AS POSSIBLE FOR YOUR LAPTOPWith the highest possible aerial density inside the thinnest space, the WD Blue mobile hard drives add as much capacity as possible to your laptop PCSTATE OF THE ART DESIGNDesigned with strong aluminum materials and a hard Tied-Shaft motor, which increases drive pinch