April 24, 2025 Brian E. Cabrera Chief Administrative Officer Quantum Corporation 224 Airport Parkway, Suite 550 San Jose, CA 95110 Re: Quantum Corporation Registration Statement on Form S-3 Filed April 18, 2025 File No. 333-286635 Dear Brian E. Cabrera: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Edwin Kim at 202-551-3297 with any questions. Sincerely, Division of Corporation Finance Office of Technology cc: James J. Masetti, Esq.