Exhibit 21
WESTERN DIGITAL COPORATION
SUBSIDIARIES OF THE COMPANY
| Name of Entity | State or Other Jurisdiction of Incorporation or Organization | |
| Amplidata N.V. | Belgium | |
| Amplidata, Inc. | Delaware | |
| EasyStore Memory Limited | Ireland | |
| Fusion Multisystems Ltd. | Canada | |
| Fusion-io (Beijing) Info Tech Co., Ltd | China | |
| Fusion-io Holdings S.A.R.L. | Luxembourg | |
| Fusion-io LLC | Delaware | |
| Fusion-io Poland SP.Z.O.O. | Poland | |
| Fusion-io Singapore Private Ltd | Singapore | |
| HGSP (Shenzhen) Co., Ltd. | China | |
| HGSP Holdco Hong Kong Limited | Hong Kong | |
| HGST (Shenzhen) Co., Ltd. | China | |
| HGST (Thailand) Ltd. | Thailand | |
| HGST Asia Pte. Ltd. | Singapore | |
| HGST Consulting (Shanghai) Co., Ltd. | China | |
| HGST Europe, Ltd. | United Kingdom | |
| HGST Japan, Ltd. | Japan | |
| HGST Malaysia Sdn. Bhd. | Malaysia | |
| HGST Netherlands B.V. | Netherlands | |
| HGST Philippines Corp. | Philippines | |
| HGST Singapore Pte. Ltd. | Singapore | |
| HGST Technologies India Private Limited | India | |
| HGST Technologies Malaysia Sdn. Bhd. | Malaysia | |
| HGST, Inc. | Delaware | |
| HICAP Properties Corp. | Philippines | |
| Keen Personal Media, Inc. | Delaware | |
| Pacifica Insurance Corporation | Hawaii | |
| Prestadora SD, S. de R.L. de C.V. | Mexico | |
| Read-Rite Philippines, Inc. | Philippines | |
| Rising Silicon Inc. | Texas | |
| Sandbox Expansion LLC | Delaware | |
| SanDisk (Cayman) Limited | Cayman Islands | |
| SanDisk (Ireland) Limited | Ireland | |
| SanDisk 3D IP Holdings Ltd | Cayman Islands | |
| SanDisk 3D LLC | Delaware | |
| SanDisk B.V. | Netherlands | |
| SanDisk Bermuda Limited | Bermuda | |
| SanDisk Bermuda Unlimited | Bermuda | |
| SanDisk BiCS IP Holdings Ltd | Cayman Islands | |
| SanDisk Brasil Participações Ltda. | Brazil | |
| SanDisk C.V. | Netherlands | |
| SanDisk China Limited | Ireland | |
| SanDisk China LLC | Delaware | |
Exhibit 21
WESTERN DIGITAL COPORATION
SUBSIDIARIES OF THE COMPANY
| Name of Entity | State or Other Jurisdiction of Incorporation or Organization | |
| SanDisk Enterprise IP LLC | Texas | |
| SanDisk Equipment Y.K. | Japan | |
| SanDisk Flash B.V. | Netherlands | |
| SanDisk France SAS | France | |
| SanDisk G.K. | Japan | |
| SanDisk GmbH | Germany | |
| SanDisk Holding B.V. | Netherlands | |
| SanDisk Holdings LLC | Delaware | |
| SanDisk Hong Kong Limited | Hong Kong | |
| SanDisk IL Ltd. | Israel | |
| SanDisk India Device Design Centre Private Limited | India | |
| SanDisk Information Technology (Shanghai) Co. Ltd. | China | |
| SanDisk International Holdco B.V. | Netherlands | |
| SanDisk International Limited | Ireland | |
| SanDisk International Middle East FZE | United Arab Emirates | |
| SanDisk Italy S.R.L. | Italy | |
| SanDisk Korea Limited | Korea | |
| SanDisk Latin America Holdings LLC | Delaware | |
| SanDisk LLC | Delaware | |
| SanDisk Malaysia Sdn. Bhd. | Malaysia | |
| SanDisk Manufacturing Americas, LLC | Delaware | |
| SanDisk Manufacturing Unlimited Company | Ireland | |
| SanDisk Operations Holdings Limited | Ireland | |
| SanDisk Pazarlama Ve Ticaret Limited Sirketi | Turkey | |
| SanDisk Scotland, Limited | United Kingdom | |
| SanDisk Semiconductor (Shanghai) Co. Ltd. | China | |
| SanDisk Spain, S.L.U. | Spain | |
| SanDisk Storage Malaysia Sdn. Bhd. | Malaysia | |
| SanDisk Sweden AB | Sweden | |
| SanDisk Switzerland Sarl | Switzerland | |
| SanDisk Taiwan Limited | Taiwan | |
| SanDisk Technologies LLC | Texas | |
| SanDisk Trading (Shanghai) Co. Ltd. | China | |
| SanDisk Trading Holdings Limited | Ireland | |
| SanDisk UK, Limited | United Kingdom | |
| SanDisk, Limited | Japan | |
| SD International Holdings Ltd. | Cayman Islands | |
| Shenzhen Hailiang Storage Products Co., Ltd. | China | |
| SMART Storage Systems GmbH | Austria | |
| STEC Bermuda, LP | Bermuda | |
| STEC Europe B.V. | Netherlands | |
| STEC Germany GmbH | Germany | |
| STEC Hong Kong Ltd. | Hong Kong | |
Exhibit 21
WESTERN DIGITAL COPORATION
SUBSIDIARIES OF THE COMPANY
| Name of Entity | State or Other Jurisdiction of Incorporation or Organization | |
| STEC International Holding, Inc. | California | |
| STEC Italy SRL | Italy | |
| STEC R&D Ltd. | Cayman Islands | |
| Suntech Realty, Inc. | Philippines | |
| Tegile Systems Private Limited | India | |
| Virident Systems International Holdings Ltd. | Cayman Islands | |
| Virident Systems, LLC | Delaware | |
| Viviti Technologies Pte. Ltd. | Singapore | |
| WD Media (Malaysia) Sdn. | Malaysia | |
| WD Media (Singapore) Pte. Ltd. | Singapore | |
| Western Digital (Argentina) S.A. | Argentina | |
| Western Digital (France) SARL | France | |
| Western Digital (Fremont), LLC | Delaware | |
| Western Digital (I.S.) Limited | Ireland | |
| Western Digital (Malaysia) Sdn. Bhd. | Malaysia | |
| Western Digital (S.E. Asia) Pte Ltd | Singapore | |
| Western Digital (Thailand) Company Limited | Thailand | |
| Western Digital (UK) Limited | United Kingdom | |
| Western Digital Australia Pty Ltd | Australia | |
| Western Digital Canada Corporation | Ontario, Canada | |
| Western Digital Capital Global, Ltd. | Cayman Islands | |
| Western Digital Capital, LLC | Delaware | |
| Western Digital Deutschland GmbH | Germany | |
| Western Digital Do Brasil Comercio E Distribuicao De Produtos De Informatica Ltda. | Brazil | |
| Western Digital Federal, LLC | Delaware | |
| Western Digital Hong Kong Limited | Hong Kong | |
| Western Digital Information Technology (Shanghai) Company Ltd. | China | |
| Western Digital International Ltd. | Cayman Islands | |
| Western Digital Ireland, Ltd. | Cayman Islands | |
| Western Digital Japan Ltd. | Japan | |
| Western Digital Korea, Ltd. | Korea | |
| Western Digital Latin America, Inc. | Delaware | |
| Western Digital Netherlands B.V. | Netherlands | |
| Western Digital Taiwan Co., Ltd. | Taiwan | |
| Western Digital Tech and Regional Center (M) Sdn. Bhd. | Malaysia | |
| Western Digital Technologies, Inc. | Delaware | |