> I thought firewire was the first serial connection that could beat > parallel buses like scsi - somewhere mid-90's. At least on consumer > equipment. Depends what you define as 'consumer' so we've now got a narrow date window and a narrow product range - keep trying. For servers fibrechannel was the fast stuff and ethernet was faster than IDE/SCSI at various times. For basic comms RS485 is faster than parallel port in general