High-performance IEC 61850-3 and IEEE 1613 Substation Computers, with fanless operation for use in substations, in addition to 19-inch rackmount servers with Xeon CPU and DIN rail units with Intel Atom. These IEC 61850-3 and IEEE 1613 are computing solutions with the utmost reliability and highest cyber security for smart grids and digital substations. They enable customers to benefit from the advantages of industrial digitalization and thus further develop their business models.