The EOS M 400-4 is a metal 3D printer developed by the German company EOS. EOS is one of the oldest 3D printing companies, active for more than 25 years in the 3D printing industry in the field of selective laser sintering and DMLS. The M 400-4 is a metal 3D printer that uses Direct Metal Laser Sintering (DMLS) technology.

The EOS M 400-4 has a large printing area of 400 x 400 x 400 mm and four precise 400-watt fiber lasers, giving it its name. With its intuitive user interface, flexible software tools and various accessories, the machine meets all requirements for use in industrial production environments.