Western Digital Caviar Green 2 TB Desktop Hard Drive (WD20EARS) (Old Model) WD Caviar Green hard drives reduce power consumption by up to 40% A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration. 2TB capacity holds up to 400,000 digital photos, 500,000 MP3 files, and 240 hours of HD video. Ships in Certified Frustration-Free Packaging