Exhibit 23.4

Collins Barrow Toronto LLP

Collins Barrow Place

11 King Street West

Suite 700, PO Box 27

Toronto, Ontario

M5H 4C7 Canada

T.   416.480.0160

F.   416.480.2646

www.collinsbarrow.com

Consent of Independent Registered Public Accounting Firm

The Board of Directors of Sphere 3D Corp.

We consent to the inclusion in this registration statement on Form F-4 of Sphere 3D Corp., being filed with the United States Securities and Exchange Commission of:

• our Independent Auditors’ Report dated April 25, 2014, on the consolidated financial statements of Sphere 3D Corp., which comprise the consolidated balance sheets as at December 31, 2013 and December 31, 2012 and the consolidated statements of loss and comprehensive loss, changes in equity and cash flows for the years ended December 31, 2013 and 2012 and a summary of significant accounting policies and other explanatory information, prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board;

• our Independent Auditors’ Report dated April 10, 2013, on the consolidated financial statements of Sphere 3D Corporation, which comprise the consolidated balance sheets as at December 31, 2012 and December 31, 2011 and the consolidated statements of loss and comprehensive loss, changes in equity and cash flows for the years ended December 31, 2012 and 2011 and a summary of significant accounting policies and other explanatory information, prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Licensed Public Accountants

Chartered Accountants

July 22, 2014

Toronto, Canada