D-Link provide networking equipment and services to homes, businesses or service provider. D-Link Systems, Inc. (formerly Datex Systems, Inc.) is a Taiwanese multinational manufacturer of networking hardware and telecoms equipments. It was founded in 1986 and headquartered in Taipei, Taiwan.

In 1988, D-Link released the industry's first peer-to-peer LANSmart Network Operating System, able to run concurrently with early networking systems such as Novell's NetWare and TCP/IP, which most small network operating systems could not do at the time.  

In 2007, it was the leading networking company in the small to medium business (SMB) segment worldwide, with a 21.9% market share.[notes 1] In March 2008, it became the market leader in Wi-Fi product shipments worldwide, with 33% of the total market. In 2007, the company was featured in the "Info Tech 100" list of the world's best IT companies. It was also ranked as the ninth best IT company in the world for shareholder returns by BusinessWeek.[3] In the same year, D-Link released one of the first Wi‑Fi Certified 802.11n draft 2.0 Wi-Fi routers (DIR-655), which subsequently became one of the most successful draft 802.11n routers.