Western Digital 320GB SATA 6Gb/s internal hard drive 7200 RPM 16 MB 2.5" Serial ATA

Maximum performance.
Sophisticated performance enhancing features deliver the speed you need for demanding applications like photo and video editing and Internet gaming.
No compromises.
High performance, high capacity, high reliability, and cutting-edge technology make up WD Black, the ideal drive for those who demand only the best.
Industry-leading warranty
WD Black carries the highest available warranty protection on the market, a 5-year limited warranty.
High performance electronics.
Dual processor - Twice the processing power to maximize performance.
Dynamic Cache - WD's dynamic caching algorithm improves performance in real time by optimizing cache allocation between reads and writes. For example, if there's an overwhelming percentage of read traffic as opposed to write traffic, the drive automatically allocates more cache for read data, which reduces congestion and improves overall drive performance.
Rock-solid Mechanical Architecture.
Enhanced reliability features help protect the drive and the data stored on it.
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.
The WD advantage.
WD puts our products through extensive Functional Integrity Testing (F.I.T) prior to any product launch. This testing ensures our products consistently meet the highest quality and reliability standards of the WD brand. WD also has a detailed Knowledge Base with more than 1,000 helpful articles as well as helpful software and utilities. Our customer support lines have longer operational hours to ensure you get the help you need when you need it. Our toll-free customer support lines are here to help or you can access our WD Support site for additional details.
Upgrading your drive is easy.
WD Acronis True Image, available as a free download on the WD Support site, enables you to copy all your data to a new drive so you don't have to reinstall your operating system to get all the benefits of a new drive.