NOVELTY - A fuel cell device (1) comprises a fuel cell board (10) comprising printed circuit substrates (100) laminated and sealed into a single layer, at least one membrane electrode assembly (102) between the substrates, and an electrical interface (104) for transmitting electrical signals of the board; and a memory device (12) for recording identification data of the board. The memory device is disposed directly onto the board, or is disposed within an externally-connected interface (2). The externally-connected interface is coupled to the board through the electrical interface.    USE - A fuel cell device.    ADVANTAGE - The fuel cell device can perform the function of identifying data. It is capable of providing information externally, and is more convenient and accurate to select components to assemble the fuel cell device.    DETAILED DESCRIPTION - A fuel cell device with an identification device, comprises:    (1) a fuel cell board comprising at least one or more printed circuit substrates laminated and sealed into a single layer, at least one membrane electrode assembly disposed between the printed circuit substrates, and an electrical interface disposed on the fuel cell board for transmitting electrical signals of the fuel cell board; and    (2) a memory device for recording identification data of the fuel cell board.    The memory device (i.e., a semiconductor memory or a controller with a built-in memory component) is disposed directly onto the fuel cell board, or is disposed within an externally-connected interface. The externally-connected interface (i.e., a printed circuit board comprising the memory device) is coupled to the fuel cell board through the electrical interface. The printed circuit substrate is an FR4 substrate, an epoxy resin substrate, a glass fiber substrate, a ceramic substrate, a polymeric plastic substrate, or their composite substrate. The identification data comprises power of a single membrane electrode assembly and/or types of fuels and/or required specifications and/or production records and/or factory data and/or specifications of peripherals. The electrical interface is a Universal Serial Bus (USB) interface, an IEEE 1394 interface, an SDIO interface, a Bluetooth(RTM: communications module) interface, an RS-232 interface, an RU-486 interface, an infrared transmission interface, or a radio frequency (RF) communication interface. The memory device further records event data occurring during operation of the fuel cell board. The event data comprises present output voltage and/or present output current and/or present temperature and/or operational time and/or present fuel concentration. The electrical interface transmits electrical signals corresponding to the identification or event data. The electrical interface comprises a connector, or a gold finger.    DESCRIPTION OF DRAWING(S) - The figure is a plan view of the fuel cell device with an identification device.    Fuel cell device (1)    Externally-connected interface (2)    Fuel cell board (10)    Memory device (12)    Printed circuit substrates (100)    Membrane electrode assembly (102)    Electrical interface (104)