The best HDD choice for ultra-compact devices and systems, the 5mm and 7mm family delivers rugged, power-miser, mainstream and performance options to manufacturers for greater design flexibility. Enhanced availability models are also available that deliver 24x7 access to data for applications requiring around-the-clock operation.
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Originally started in 1994, SPAN was created with one goal in mind - to become the premium provider of data storage solutions to business and home users alike. Over 20 years later, SPAN is now a thriving company with a team of dedicated employees and a driving commitment to achieving that original core directive — providing first class data storage solutions. This does not begin and end at checkout. We at SPAN believe that no order is complete until a customer is satisfied, and it is with that in mind that we have worked consistently to provide the three S’.
Support — We at SPAN know that Data Storage is always evolving and it can all get confusing. Have no fear. We offer everything from detailed product information, direct technical support and live-chat facilities to direct phone support, compatibility options and a team of technical advisors with years of hands-on experience. No stone is left unturned.
Security — Whether it’s the data on your drive or your visit to our site, we consider your security paramount. With multiple layers of protection in our transaction processes and constant efforts being made to ensure every order is seamless, we think you’ll fine SPAN to be one of the safest place on the web.
Satisfaction — Above all other priorities, your satisfaction is the most important of all. From the big blue chip companies to the home user in his living room, we want you to feel satisfied that SPAN will go that extra mile for you. Nothing is more crucial to our goals than you finishing your purchase, safe in the knowledge that you have achieved yours too! Thank you as always for choosing SPAN.COM.
A hard disk drive (HDD), hard disk, hard drive or fixed disk is a data storage device used for storing and retrieving digital information using one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order rather than sequentially. An HDD retains its data even when powered off.
Introduced by IBM in 1956, HDDs became the dominant secondary storage device for general-purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and personal computers. More than 200 companies have produced HDD units, though most current units are manufactured by Seagate, Toshiba and Western Digital. Worldwide disk storage revenues were US $32 billion in 2013, down 3% from 2012.
2.5-inch Hard Drives
2.75 in × 0.275–0.75 in × 3.945 in (69.85 mm × 7–19 mm × 100 mm) = 48.895–132.715 cm3. This smaller form factor was introduced by PrairieTek in 1988; there is no corresponding FDD. The 2.5-inch drive format is standardized in the EIA/ECA-720 co-published as SFF-8201; when used with specific connectors, more detailed specifications are SFF-8212 for the 50-pin (ATA laptop) connector, SFF-8223 with the SATA, or SAS connector and SFF-8222 with the SCA-2 connector.
It came to be widely used for HDDs in mobile devices (laptops, music players, etc.) and for solid-state drives (SSDs), by 2008 replacing some 3.5 inch enterprise-class drives. It is also used in the PlayStation 3 and Xbox 360 video game consoles.
Drives 9.5 mm high became an unofficial standard for all except the largest-capacity laptop drives (usually having two platters inside); 12.5 mm-high drives, typically with three platters, are used for maximum capacity, but will not fit most laptop computers. Enterprise-class drives can have a height up to 15 mm. Seagate released a 7 mm drive aimed at entry level laptops and high end netbooks in December 2009. Western Digital released on April 23, 2013 a hard drive 5 mm in height specifically aimed at UltraBooks.