The Western Digital Scorpio HDD is an internal hard drive that works with notebooks. This internal hard drive is 2.5 inches and is 320GB. With its SATA interface, you can transfer rates up to 3 Gbps. The SATA interface ensures quick data transfer. The Western Digital Scorpio HDD (WD3200BEVT) includes Whisper technology. The Whisper technology makes it one of the quietest internal hard drives on the market. It has a 8MB cache memory, making your search for files easier. Also, this internal hard drive has ShockTechnology. This technology protects the hard drive even in the event that it may fail.