Many cutting software (SignCut, Sure Cuts a Lot, WinPC Sign) require a COM port number between 1 and 8.
The for Windows 7 functions primarily as a communication bridge that allows your computer to recognize the vinyl cutter as a "printer" or a serial device . This driver is essential for sending vector data from design software directly to the plotter for precise cutting. Core Driver & Hardware Features Goldcut Jk-series Driver Windows 7