Exhibit (11)

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March 28, 2024

Fidelity Rutland Square Trust II

245 Summer Street

Boston, MA 02210

Re: Registration Statement on Form N-14

Ladies and Gentlemen:

We have acted as counsel to Fidelity Rutland Square Trust II, a Delaware statutory trust (the “Trust”), in connection with the Trust’s Registration Statement on Form N-14 (the “Registration Statement”) filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended (the “Securities Act”), relating to the transfer of all of the assets of each of Strategic Advisers Large Cap Fund and Strategic Advisers Small-Mid Cap Fund (each, an “Acquired Fund,” and collectively, the “Acquired Funds”), each series of the Trust, to Strategic Advisers U.S. Total Stock Fund (the “Acquiring Fund,” together with the Acquired Funds, the “Funds”), a series of the Trust, in exchange for the issuance of shares of beneficial interest of the Acquiring Fund (the “Shares”), and the assumption of the liabilities of each Acquired Fund, pursuant to the proposed reorganizations as described in the Registration Statement and the form of Agreement and Plan of Reorganization (the “Agreement”) by and between the Trust, on behalf of the Acquiring Fund and the Trust, on behalf of each Acquired Fund.

In connection with the opinions set forth herein, you have provided to us originals, copies or facsimile transmissions of, and we have reviewed and relied upon, among other things, copies of the following: the Registration Statement; the Agreement; the Trust Instrument of the Trust dated March 8, 2006; the By-Laws of the Trust dated June 4, 2009 (the “By-Laws”); and copies of resolutions duly adopted by the Funds’ Board of Trustees approving the Agreement and each reorganization. In addition, we have reviewed and relied upon a Certificate issued by the Secretary of State of Delaware with respect to the Trust.

In rendering this opinion we have assumed, without independent verification, (i) the due authority of all individuals signing in representative capacities and the genuineness of signatures; (ii) the authenticity, completeness and continued effectiveness of all documents or copies furnished to us; (iii) that any resolutions provided have been duly adopted by the Funds’ Board of Trustees; (iv) that the facts contained in the instruments and certificates or statements of public officials, officers and representatives of each Fund on which we have relied for the purposes of this opinion are true and correct; and (v) that no amendments, agreements, resolutions or actions have been approved, executed or adopted which would limit, supersede or modify the items described above. Where documents are referred to in resolutions approved by the Funds’ Board of Trustees, or in the Registration Statement, we have assumed such documents are the same as in the most recent form provided to us, whether as an exhibit to the Registration Statement or otherwise. When any opinion set forth below relates to the existence or standing of the Trust, such opinion is based entirely upon and is limited by the items referred to above, and we understand that the foregoing assumptions, limitations and qualifications are acceptable to you.

Based upon the foregoing, we are of the opinion that the Shares registered under the Securities Act, when issued in accordance with the terms described in the Registration Statement and the Agreement, will be validly issued, fully paid and non-assessable.

This opinion is limited to the Delaware Statutory Trust Act, and we express no opinion with respect to the laws of any other jurisdiction or to any other laws of the State of Delaware. Further, we express no opinion as to compliance with any state or federal securities laws, including the securities laws of the State of Delaware.

The opinion expressed herein is given as of the date hereof and we undertake no obligation and hereby disclaim any obligation to advise you of any change after the date of this opinion pertaining to any matter referred to herein. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and any amendments thereto and to the use of our name and discussion of this opinion in the Registration Statement unless and until we revoke such consent. In giving such consent, we do not hereby admit that we are within the category of persons whose consent is required by Section 7 of the Securities Act or the rules and regulations thereunder.

Very truly yours,

/s/ Dechert LLP