I have a HP Photosmart C5100A scanner. I would like to connect it to my HP a250n computer which has windoes XP. I need a SCSI to USB connector. The SCSI plug has 2 rows of 25 pins each. Does such a connector exist and if so is it available and for how much money? The existing connector allows for connection to a Windows 98 program and is a SCSI to SCSI connection.