WD Blue™ internal hard drives deliver reliability for office and web applications. They are ideal for use as primary drives in desktop PCs and for office applications. With a range of capacities and cache sizes, there’s a WD Blue internal hard drive that’s just right for you. 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. Low power consumption State-of-the-art seeking algorithms and advanced power management features ensure low power consumption  Tested for compatibility We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab to give our customers confidence that our drives will work in their systems. Upgrading your drive is easy Seamlessly migrate your current system to your new Western Digital drive using Acronis® True Image™ WD Edition software, available as a free download on the Western Digital Support site. This software 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.  The Western Digital® advantage Western Digital puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. On average, each new product goes through 600,000 hours of testing. Western Digital also has a detailed Knowledge Base with more than 1,000 helpful articles. You can also call toll-free support 7 days per week in the U.S. and Canada. See the Western Digital Support site for full details. Recommended use - WD Desktop hard drives are tested and recommended for use in PCs, industrial applications and external enclosures. 2 1. As used for storage capacity, 1GB = 1 billion bytes and 1TB = one trillion bytes. Actual user capacity may be less depending on operating environment.  2. Business critical RAID environments – Please consider WD Red Plus Hard Drives for multi-bay consumer NAS environments with 1-8 bay chassis. For business critical RAID applications, please consider Western Digital's enterprise hard drives that are specifically designed with RAID-specific, time-limited error recovery (TLER), are tested extensively in 24x7 RAID applications, and include features like enhanced RAFF technology and thermal extended burn-in testing. WD Blue internal hard drives are not recommended for and are not warranted for use in RAID environments utilizing Enterprise HBAs and/or expanders and in multi-bay chassis, as they are not designed for, nor tested in, these specific types of RAID applications.