The ASPI ActiveX Control is shareware software. The Evaluation Edition is licensed for 15 days.
Registered users get a version of the control without the nag screen and an on-line help facility.
Additionally, when asynchronous operation is supported, all registered users will receive a free upgrade. For registration information, please see our Order Page. The specification called for a 50 pin cable with a parallel data bus of eight bits. Up to eight devices could be interconnected to the same cable because every device connecting to the cable drove it using open-collector drivers. When ANSI ratified the specification, SCSI came into play and added a host of new features to the original specification.