Exhibit 3.40

Secretary of State P O. Box 13697 Austin, TX 78711-3697 FAX: 512/463-6709   Filing Fee: $300 Certificate of Formation Limited Liability Company

Article 1 - Entity Name and Type

The filing entity being formed is a limited liability company. The name of the entity is:

RSIgnite, LLC

Article 2 - Registered Agent and Registered Office

x A. the Initial registered agent is an organization (cannot be company named above) by the name of:

CSC-Lawyers Incorporating Service Company

OR

¨ B. The initial registered agent is an individual resident of the state whose name is set forth below:

C. The business address of the registered agent and the registered office address is:

Street Address:

211 East 7th Street, Suite 620 Austin TX 78701-3218

Consent of Registered Agent

¨ A. copy of the consent of registered agent is attached.

OR

x B. The consent of the registered agent is maintained by the entity.

Article 3 - Governing Authority

x A. The limited liability company is to be managed by managers,

OR

¨ B. The limited liability company will not have managers. Management of the company is reserved to the members. The names and addresses of the governing persons are set forth below:

Manager 1: James F. Gooch	Title: Manager
Address: 300 RadioShack Circle, MS CF3 Fort Worth TX, USA 76102-1964
Manager 2: Scott E. Young	Title: Manager
Address: 300 RadioShack Circle, MS CF3 Fort Worth TX, USA 76102-1964
Manager 3: Martin O. Moad	Title: Manager
Address: 300 RadioShack Circle, MS CF3 Fort Worth TX, USA 76102-1964

Article 4 - Purpose

The purpose for which the company is organized is for the transaction of any and all lawful business for which limited liability companies may be organized under the Texas Business Organizations Code

Supplemental Provisions / Information

[The attached addendum, If any, Is Incorporated herein by reference.]

Organizer

The name and address of the organizer are set forth below:

Jeffrey J. Walker 300 RadioShack Circle, MS CF4-101, Fort Worth, TX 76102-1964

Effectiveness of Filing

x A. This document becomes effective when the document is filed by the secretary of state.

OR

¨ B. This document becomes effective at a later date, which is not more than ninety (90) days from the date of its signing. The delayed effective date is:

Execution

The undersigned affirms that the person designated as registered agent has consented to the appointment. The undersigned signs this document subject to the penalties imposed by law for the submission of a materially false or fraudulent instrument and certifies under penalty of perjury that the undersigned is authorized under the provisions of law governing the entity to execute the filing instrument.

Jeffrey J. Walker

Signature of Organizer