Western Digital Blue internal hard drive 6 TB 5400 RPM 256 MB 3.5" Serial ATA IIIThe Higher Standard In Storage Boost your PC storage with WD Blue drives, the brand designed just for desktop and all in one PCs with a variety of storage capacities. Improve PC Performance Give your desktop a performance and storage boost when you combine your hard drive with an SSD to maximize speed of data access and a WD Blue drive for up to 6TB of additional capacity. Plan for the Future With better technology comes bigger storage needs. Digital