Adaptec AHA-2940AU User Guide - Page 1

1 Introduction The Adaptec AHA®-2940Ultra and AHA-2940Ultra Wide PCI-to-Fast SCSI host adapters provide a powerful multitasking interface between your computer's PCI bus and SCSI devices (disk drives, CD-ROM drives, scanners, tape backups, removable media drives, etc.). Collectively, both host adapters are referred to as the AHA-2940Ultra/2940Ultra Wide. The following figures show the major components on the AHA-2940Ultra and AHA-2940Ultra Wide. 50-pin 8-bit Internal Host Adapter SCSI Connector BIOS LED Connector 50-pin 8-bit External SCSI Connector Host Adapter LED AIC-78xx SCSI Protocol Chip Adaptec AHA-2940Ultra 68-pin 16-bit Internal SCSI Connector 50-pin 8-bit Internal SCSI Connector LED Connector 68-pin 16-bit External SCSI Connector Host Adapter LED Host Adapter BIOS AIC-78xx SCSI Protocol Chip Adaptec AHA-2940Ultra Wide 1