Removed from professional laboratory equipment, fully functional – the photograph shows the display exactly as it was working immediately prior to removal from the equipment. Futaba CorporationMade in Japan4 x 40 Vacuum Fluorescent DisplayDisplay area: 173mm x 35mmModule area: 203mm x 60mmBright green/blue display – easy to read in all light conditionsIncludes blue filterExternal interface: 26 way connectorModule includes ALL electronics (VFD, one chip controller, driver IC and local DC/DC power supply) basic system requirements are 5V rail at around 800mADo not be lulled into thinking that at 5V supply rail this can be handled carelessly – onboard high voltage supplies exist for the VFD – DO NOT TOUCH while in operation!Character display is by a 5 x 7 dot matrixScreen brightness can be controlled in 5 step levelsInterface can be parallel or serial data (1200 to 9600) – selectableBuilt in self test functionBoth the self test and parallel/serial selection are easy to access via the onboard jumper positions J1 & J2 and pin 16 of the connector.A great high quality dot matrix display module for the experimenter, R&D purposes or even service repair.On the experimental side, I know a few users of these have interfaced them to their Arduino projects.Here is a link to a page that describes the technical aspects of the display (albiet the 2 line version) and lots of other helpful information.https://playground.arduino.cc/Main/M204SD01B Supplied in ESD foam packaging along with an outer ESD bag