... CCD,SSD,Keyboard,Printer,Invigilator,flash drive and cable ASSY. A D-sub contains two or more ... an electrically continuous screen covering the whole cable and connector system.D-subminiature connectors were invented by ITT ... , in 1952.[1] Cannon's part-numbering system uses a D as the prefix for the ... threaded hole that receives the jackscrews on the cable shell, to hold the plug and socket together ...