Hi guys, new to the forum. I work at a family sign shop and have been around plotters my whole life. I recently acquired an old Gerber Sprint IIB for free. I've done some research and it sounds like I can connect it to a COM port if I get an LMK card. Does anyone know if/where I can get one for reasonably cheap? Do they still exist? I'm aware that it's a very very old machine. Thanks in advance for the help.