A rack with a mounting bay to accommodate servers, wherein 1) the mounting bay defines two opposing internal areas disposed parallel to an insertion direction of the servers and divided into a multiplicity of slots, 2) one or more data lines for data connection of servers are configured in the rack, 3) the data lines include optical data lines, and 4) on at least one of the two internal areas of the mounting bay, an end section of a data line with a data interface is disposed on each slot such that a contactless optical data connection to a further data interface on a corresponding server is enabled.