Document

We are acting as counsel for Quantum Corporation, a Delaware corporation (the “Company”), in connection with the issuance and sale of shares (the “Shares”) of common stock, par value of $0.01 per share (the “Common Stock”), of the Company having an aggregate offering price of up to $50,000,000, all of which are authorized but heretofore unissued shares to be offered and sold by the Company, pursuant to (i) the Registration Statement on Form S-3 (the “Registration Statement”), filed by the Company with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933 (the “Act”) on November 25, 2020, (ii) the related prospectus, as supplemented by the prospectus supplement relating to the offer and sale of the Shares (as so supplemented, the “Prospectus”), and (iii) the Sales Agreement dated as of November 25, 2020, between the Company and B. Riley Securities, Inc. (the “Agreement”).

We have reviewed and are familiar with such documents, corporate proceedings and other matters as we have considered relevant or necessary as a basis for the opinions in this letter. Based on the foregoing, we are of the opinion that the Shares have been duly authorized and, when issued and sold by the Company in the manner described in the Registration Statement and the Prospectus and in accordance with terms of the Agreement, will be validly issued, fully paid and nonassessable.

We hereby consent to the filing of this opinion letter as Exhibit 5.2 to the Registration Statement and to the use of our name under the caption “Legal Matters” in the Prospectus. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Commission promulgated thereunder.