A perfect device for providing industrial strength and great performance, this Western Digital 40 GB hard drive is quick and sturdy. Hardware enthusiasts and power users love the specifications and functionality of this internal 3.5-inch hard drive. This Western Digital 40 GB hard drive is a good choice for storing all of your important data. The Western Digital WD400BB-75JHA0 is wonderfully dependable, featuring solid build quality, allowing you to enjoy many years of glitch-free uptime without problems from disk crashes or data errors. This Western Digital 40 GB hard drive allows you to preserve all of your downloaded music, digital photos, and software packages with confidence with its significant storage capacity. This internal 3.5-inch hard drive is a breeze to install, which means you are able to conveniently make the most of it in devices that support the IDE interface. In addition, as the Western Digital WD400BB-75JHA0 has a lightning-fast 7200 RPM spindle speed, you can backup massive applications, data files, and photos without having to wait.