Dongle but no USB until they come out with the next upgrade. I was impressed with the software until I bought it and found out the downside of having to use the parallel port. Event the cheap Co-Cuttish software I got with my Summa will communicate with the cutter and tell you if your media size is adequate for the design you're trying to send. I can't wait til the next version comes out so I can take advantage of using USB....sure seems like it's taking a long time to come out. They've been teasing us for about a year now.