Western Digital Corporation (Western Digital) is a developer and manufacturer of storage solutions, which enables people to create, manage, experience and preserve digital content. The Company designs and makes storage devices and home entertainment products under the HGST, WD and G-Technology brands. The Company's principal products are hard drives that use one or more rotating magnetic disks (magnetic media) to store and allow fast access to data. Hard drives are primary storage medium for digital content. The Company operates its global business through two independent subsidiaries: Hitachi Global Storage Technologies Holdings Pte. Ltd. (HGST) and Western Digital Corporation (WD). In September 2013, the Company announced that it has completed the acquisition of sTec, Inc. In October 2013, Western Digital Corporation completed the acquisition of Virident Systems, Inc.