Although we have made our name in providing quality upgrade and replacement RAM modules, Memory America is also a trusted source for the purchase of new computer hard drives and hard drive accessories. Our hard drive selection includes internal hard drives; Solid State Drives (SSD) for Apple products including iMac, Mac Pro, MacBook Air, Mac Mini, MacBook and Xserve devices; external hard drives; external enclosures and genuine hard drives. All of these products are new and are guaranteed to work well in your computer or server. Our hard drive brands include popular products from Seagate, Western Digital, Toshiba, LaCie and Hitachi. In addition to searching for hard drives by brand name, you can search for hard drives based on their Serial ATA (SATA) delineation. Serial ATA is a computer bus interface that connects host bus adapters to mass storage drives. First generation SATA interfaces communicate at a rate of 1.5GB/s. The "II" and "III" after SATA refer to revisions as a result of increased transfer rates. All of our products include detail descriptions including the manufacturer’s part number, capacity of the hard drive and drive rotation speed allowing you to make an informed decision on the product that you need before ordering. We do not want our customers to order the wrong hard drive by mistake, but if this does happen, we do have a 30-day money back guarantee policy in place. We also have a very knowledgeable technical support staff available to answer your product questions. Giving our customers the opportunity to speak with technical staff and generous return policies are part of our commitment to providing outstanding customer service which is a very important aspect of our business philosophy. Our pricing structure is also very important as we believe in offering products at very competitive prices. Our prices are low but this does not mean that the products are cheap. Our hard drives are the best available on the market from name brands. We are confident that you will be pleased with your hard drive purchase from our site.