As hard drive capacities increase, the power required to run those drives increases as well. WD Caviar Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation. Reduced power consumption - WD has reduced power consumption by up to 40 percent compared to standard desktop drives with the combination of WD's IntelliSeek™, NoTouch™, and IntelliPower™ technologies. Helps enable eco-friendly PCs - WD Caviar Green drives yield an average drive power savings of 4-5 watts over standard desktop drives making it possible for our energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation. Cool and quiet - GreenPower™ technology yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives. Massive capacity - Capacities up to 2 TB offer the most available capacity for storage-intensive programs and space-hungry operating systems, like Window Vista®, with plenty of room left over for photos, music, and video. Perfect for external drives - External drive manufacturers can eliminate the need for a fan in a high-capacity product with a WD Caviar Green drive, the coolest and quietest in its class. IntelliPower - A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance. IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration. View demo > NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit. Perpendicular Magnetic Recording (PMR) - Employs PMR technology to achieve even greater areal density. StableTrac™ - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations. (2 TB models only) Low power spin-up - WD Caviar Green drives consume less current during startup allowing lower peak loads. Advanced power technology - Electronic components deliver best-in-class low power consumption for reduced power requirements and increased reliability. Ideal For Environmentally friendly PCs and external storage requiring lower power consumption and cool, quiet operation. Features: - HDD capacity: 2 - HDD size: 3.5 - HDD speed: 5400 - Interface: Serial ATA II - Storage drive buffer size: 64 - Type: HDD Operational conditions: - Non-operating shock: 250 - Operating shock: 65 - Operating temperature (T-T): 0 - 60 - Storage temperature (T-T): -40 - 70 Other features: - Acoustic pressure emissions: 24 - IntelliPower: Yes - Power requirements: 12/5 VDC Power: - Operating voltage: 5 / 12 - Power consumption (standby): 0.8 - Power consumption (typical): 3.7 Vendor information: - Brand Name: Western Digital - Warranty: 1 - Product.Details.Specifications.Level1: Server, Computer & Printer Parts - Product.Details.Specifications.Level2: Data Storage Devices - Product.Details.Specifications.Level3: Internal Hard Drives