# Certain Power Converters, Circuit Board Assemblies, and Computing Systems Containing the Same; Notice of Institution of Investigation
**AGENCY:**
U.S. International Trade Commission.
**ACTION:**
Notice.
**SUMMARY:**
Notice is hereby given that a complaint was filed with the U.S. International Trade Commission on January 12, 2026, under section 337 of the Tariff Act of 1930, as amended, on behalf of Vicor Corporation of Andover, Massachusetts. Supplements to the Complaint were filed on January 21, 23, and 26, 2026. On January 27, 2026, the public Complaint was refiled with a revised set of public exhibits. The complaint, as supplemented, alleges violations of section 337 based upon the importation into the United States, the sale for importation, and the sale within the United States after importation of certain power converters, circuit board assemblies, and computing systems containing the same by reason of the infringement of certain claims of U.S. Patent No. 12,395,087 (“the '087 patent”). The complaint further alleges that an industry in the United States exists as required by the applicable Federal Statute. The complainant requests that the Commission institute an investigation and, after the investigation, issue a limited exclusion order and cease and desist orders.
**ADDRESSES:**
The complaint, except for any confidential information contained therein, may be viewed on the Commission's electronic docket (EDIS) at *https://edis.usitc.gov.* For help accessing EDIS, please email *[email protected].* Hearing impaired individuals are advised that information on this matter can be obtained by contacting the Commission's TDD terminal on (202) 205-1810. Persons with mobility impairments who will need special assistance in gaining access to the Commission should contact the Office of the Secretary at (202) 205- 2000. General information concerning the Commission may also be obtained by accessing its internet server at *https://www.usitc.gov.*
**FOR FURTHER INFORMATION CONTACT:**
Susan Orndoff, The Office of the Secretary, Docket Services Division, U.S. International Trade Commission, telephone (202) 205-1802.
**SUPPLEMENTARY INFORMATION:**
**Authority:**
The authority for institution of this investigation is contained in section 337 of the Tariff Act of 1930, as amended, 19 U.S.C. 1337, and in section 210.10 of the Commission's Rules of Practice and Procedure, 19 CFR 210.10 (2025).
*Scope of Investigation:* Having considered the complaint, the U.S. International Trade Commission, on February 11, 2026, Ordered That -
(1) Pursuant to subsection (b) of section 337 of the Tariff Act of 1930, as amended, an investigation be instituted to determine whether there is a violation of subsection (a)(1)(B) of section 337 in the importation into the United States, the sale for importation, or the sale within the United States after importation of certain products identified in paragraph (2) by reason of infringement of one or more of claims 1-20, 24, 25, 28-39, 41-50, 60-63, 66, 68-74, 76, 77, 80-85, 87-90, and 94 of the '087 patent and whether an industry in the United States exists as required by subsection (a)(2) of section 337;
(2) Pursuant to section 210.10(b)(1) of the Commission's Rules of Practice and Procedure, 19 CFR 210.10(b)(1), the plain language description of the accused products or category of accused products, which defines the scope of the investigation, is “power converters used in data center server, artificial intelligence and cloud computing systems, to power artificial intelligence (`Al') accelerators, tensor processing units (`TPU'), graphical processing units (`GPU') and central processing units (`CPU'), and circuit board assemblies and computing systems containing the same”;
(3) For the purpose of the investigation so instituted, the following are hereby named as parties upon which this notice of investigation shall be served:
(a) The complainant is:
Vicor Corporation, 25 Frontage Road, Andover, MA 01810.
(b) The respondents are the following entities alleged to be in violation of section 337, and are the parties upon which the complaint is to be served:
Delta Electronics, Inc., 186, Ruey Kuang Road, Neihu Dist., Taipei 114501, Taiwan
Delta Electronics (Americas) Ltd., 46101 Fremont Blvd., Fremont, CA 94538
DET Logistics (USA) Corporation, 46106 Fremont Blvd., Fremont, CA 94538
Luxshare Precision Industry Co., Ltd., 313 Beihuan Road, Qingxi Town, Dongguan, Guangdong 523642, China
Dongguan Luxshare Technology Co., Ltd. a/k/a Luxshare-Tech, 8th Floor, Digital Technology Industrial Park, CIMC Industrial City, No. 1 Yile Road, Songshan Lake High-Tech Zone, Dongguan City, Guangdong, China
Shanghai Peiyuan Electronics Co., Ltd. d/b/a, MetaPWR Electronics Co., Ltd. and Shanghai, MetaPWR Electronics Co., Ltd., Building 6, Lane 288, Haiji 6th Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone, China
Monolithic Power Systems, Inc., 5808 Lake Washington Blvd. NE, Kirkland, Washington 98033
Chengdu Monolithic Power Systems Co., Ltd., #8 Kexin Road, Hi-Tech Comprehensive Bonded Zone, Chengdu, Sichuan 611731, China
MPS International (Shanghai) Ltd., Suite 704-705, Tian An Centre, No. 338 Nanjing Road (West), Shanghai 200003, China
Wistron Corporation, No. 158, Xingshan Rd., Neihu Dist., Taipei City, Taiwan, 11469
Wiwynn Corporation, 8F, No.90, Sec.1, Xintai 5th Rd., Xizhi Dist., New Taipei City 221, Taiwan
Quanta Computer Inc., No. 211, Wenhua 2nd Rd., Guishan Dist., Taoyuan City 333, Taiwan
Quanta Cloud Technology Inc., 1F, No. 211 Wenhua 2nd Rd., Guishan Dist., Taoyuan City 33377, Taiwan
Quanta Cloud Technology USA LLC, 1010 Rincon Circle, San Jose, CA 95131
Quanta Computer USA Inc., 45630 Northport Loop East, Fremont, CA 94538
(4) For the investigation so instituted, the Chief Administrative Law Judge, U.S. International Trade Commission, shall designate the presiding Administrative Law Judge.
The Office of Unfair Import Investigations will not participate as a party in this investigation.
Responses to the complaint and the notice of investigation must be submitted by the named respondents in accordance with section 210.13 of the Commission's Rules of Practice and Procedure, 19 CFR 210.13. Pursuant to 19 CFR 201.16(e) and 210.13(a), such responses will be considered by the Commission if received not later than 20 days after the date of service by the Commission of the complaint and the notice of investigation. Extensions of time for submitting responses to the complaint and the notice of investigation will not be granted unless good cause therefor is shown.
Failure of a respondent to file a timely response to each allegation in the complaint and in this notice may be deemed to constitute a waiver of the right to appear and contest the allegations of the complaint and this notice, and to authorize the administrative law judge and the Commission, without further notice to the respondent, to find the facts to be as alleged in the complaint and this notice and to enter an initial determination and a final determination containing such findings, and may result in the issuance of an exclusion order or a cease and desist order or both directed against the respondent.
By order of the Commission.
Issued: February 11, 2026.
Lisa Barton,
Secretary to the Commission.