WD Green 1 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache - WD10EARX 2 year limited warranty. 1 TB capacity holds up to 200,000 digital photos, 250,000 MP3 files, and 120 hours of HD video. IntelliPower - A fine-tuned balance of spin speed, WD Caviar Green hard drives reduce power consumption by up to 40% IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration. Ships in Certified Frustration-Free Packaging