Micro-Star International (MSI), is a Taiwan based computer hardware manufacturer best known for desktop computer motherboards. MSI also designs and manufactures graphics cards, barebone PCs, notebook computers, networking products, servers, multimedia, consumer electronics, and storage devices.

MSI was the first company to develop motherboards whose BIOS can be updated directly via the Internet

MSI, as most Taiwanese computer manufacturers, sells products on OEM/ODM basis. It also sells products worldwide based on its own brand name "MSI".