|I have been using a computer with XP PRO and a BP9 connector with my TS-2000. I have a new computer with WIN 7 and no DP9 connector. I looked into the the DP9 to USB route. They are cheap. Now I have go and order one. I then talked to a ham friend and he said try this serial card he had. It is by StarTech.Com, 2 Port PCI # 16C550 Serial Port Card. The one I got here came with a 3'' floppy with drivers for 95/98/ME/NT/4/2000/linux no use to me. I looked up the card and it said that it would work with WIN 7. I put in the card and booted up. I then went to the System icon, opened up device panel then to PCI Multi-IO Controller. Then opened up driver and clicked update driver. That was it. The card might be easier to find.