Am using older Mac G450 with a NEC usb card & the PCUT630 USB & FlexiCut8 Starter The card is compliant with both the mac and cutter --the chip set is important, as described in other posts here.
the biggest problem is getting drivers that are "conversive" enough to communicate with both Mac and Dos (pc)
I did try several USB / pci cards and several drivers, but NO comprenda. I also tried different serial to usb cables.
Most of that action was with another -very old- cutter. When I got this PC630 with the usb connection, I thought that it would be simple enough to set up, however.. the Flexi would not recognize any usb connections.
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I was about to purchase a Keyspan serial to USB device, and thought to download the software first.
Keyspan USA-19HS aka keyspanusadrvr-- there are several drivers for macosx, if one doesnt work, try another. if that doesnt work, buy the hardware.
once rebooted, the cutter showed up in the Flexi setup and cut as expected.I found the 19-HS for less than $30 at Amazon, in retrospect, it would have been cheaper to get the Keyspan first, but then I wouldn't have all these extra parts on hand
