5269 on Taiwan Stock Exchange

ASMedia

Logo: ASmediatech, CC0, via Wikimedia Commons3

Taiwanese integrated circuit design company

ASMedia Technology Inc. (Chinese: 祥碩科技) is a Taiwanese integrated circuit design company. It produces designs for USB, PCI Express and SATA controllers. Excluding the X570 chipset, all of the AM4 chipsets for AMD's Zen micro-architecture were designed by ASMedia.2 It was founded by ASUS.1 It is part of ASUS.1 Its shares trade on Taiwan Stock Exchange under the symbol 5269.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

Mar 24, 2004Founded1

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  • Ticker5269 on Taiwan Stock Exchange1
  • Industryelectronics industry, semiconductor industry1
  • HeadquartersNew Taipei City1
  • Websitewww.asmedia.com.tw
  • Legal formpublic company1
Circuit board from a USB 3.0 external 2.5-inch HDD enclosure
Photo: Dsimic, CC BY-SA 3.0, via Wikimedia Commons5

ASMedia Technology Inc. (Chinese: 祥碩科技) is a Taiwanese integrated circuit design company. It produces designs for USB, PCI Express and SATA controllers. Excluding the X570 chipset, all of the AM4 chipsets for AMD's Zen micro-architecture were designed by ASMedia.2

Corporate structure

ASMedia is part of a group headed by ASUS. 15 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • ASUS Fremont, California, United States
    • ASMedia New Taipei City
    • AAEON Subsidiary · Taipei
    • ASKEY Subsidiary · New Taipei City
    • ASRock Subsidiary · Taipei
    • Asus (China) Subsidiary · Beijing, People's Republic of China
    • ASUSTOR Subsidiary · Taipei
    • Garmin-ASUS Subsidiary · Olathe
    • PEGATRON Subsidiary · Taipei, Taiwan
      • Kinsus Interconnect Technology Subsidiary · Xinwu District
      • PEGATRON Czech s.r.o. Subsidiary · 100% · Ostrava, Czechia
      • TATA ELECTRONICS PRODUCTS AND SOLUTIONS PRIVATE LIMITED Subsidiary · 100% · Chengalpattu, India
      • Pegatron Czech Subsidiary · Czechia
      • Pegatron Holland Holding Subsidiary
      • Pegatron Venture Capital Co., Ltd. (和鼎創業投資股份有限公司) Subsidiary · Taipei City, Taiwan
    • ASUS Republic of Gamers Owned

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

Founded by ASUS on Mar 24, 2004.1

In 2009, ASMedia became the first company in Taiwan to obtain USB-IF Association certification for its USB 3.0 device controller chip, followed by certification for its host controller chip in 2011.

In 2014, VIA won a courtcase against ASMedia, after it sued ASMedia for using confidential VIA intellectual property related to USB technology, obtained from ex-VIA employees who had joined ASMedia.

In 2015, ASMedia became the first company in the world to obtain USB-IF Association certification for its USB 3.1 host controller chip and USB 3.1 to SATA bridge controller chip.

In 2016, the company launched the world's first second-generation integrated Type-C USB 3.1 (10G) to SATA bridge controller chip and obtained USB-IF Association certification.

In 2019, it unveiled the world's first USB 3.2 Gen2x2 controller chip and was selected as one of Forbes Asia's 200 Best Under A Billion companies.

In 2023, ASMedia became the first company in the world to obtain USB-IF Association certification for its USB4 device controller chip, USB4 with Thunderbolt 3 device controller chip and USB 3.2 Gen2x2 hub controller chip.

In 2024, the ASMedia ASM4242 USB4 Host Controller Chip Achieves Thunderbolt 4 Certification.

From Wikipedia’s article on ASMedia, shared under CC BY-SA 4.0.4

Products and brands

  • integrated circuit

Listed on Wikidata.1

The company's main business is the design and development, sales, and technical services of high-speed Switch IC, PCIe bridge IC, and USB3.2/ USB4 control IC. The main commodity items are listed as follows:

USB controller IC

PCIe bridge controller

SATA controller IC

Read the full text

High-speed Switch controller IC

Specific integrated chip

New Products Planned for Development

New-generation USB4 host, device IC and USB hub IC

Fourth and fifth generation PCI Express bridge controller chips

Sixth generation PCI Express technology

PD controller

Low-power physical layer development for IO Hub

Introduction of new process technology

Introduction of new packaging technology

From Wikipedia’s article on ASMedia, shared under CC BY-SA 4.0.4

Subsidiaries and ownership

Parent company

Owners

From Wikidata.1

Timeline

  1. Mar 24, 2004Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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