Mitsubishi Electric - Computing for a Connected World Insight CD Home Page

Product Identification
Product Timeline
Desktop Systems
Server Systems
Add-in Cards
Sorage Devices
Search Insight
E-Mail us
Insight Service
Year 2000
Other Mitsubishi Sites
Site Disclaimer

Adaptec AHA-2940 Technical Specifications (Rev 1.11.1)

Computer Bus

PCI local-bus

Interface Protocol

Bus master DMA.

Host Bus Data Transfer Rate

Up to 133 Mbytes./sec burst rate.

SCSI Synchronous Data Rate

10 Mbytes/sec (Fast SCSI, AHA-2940)

SCSI Asynchronous Data Rate

3 Mbytes/sec (AHA-2940)

Device Protocol

SCSI-2 (AHA-2940)

Advanced SCSI Features

Advanced SCSI Programming Interface (ASPI) compliant, multi-threaded I/O, scatter/gather, tagged queuing, disconnect/reconnect, synchronous and asynchronous Fast and Wide.

Electrical Drivers

Single-ended, active, programmable via SCSISelect configuration utility.

Bus Width 32-bit.

Hard Disk Capacity

Extended translation scheme supports up to eight (8) Gbytes per disk.

Adaptec BIOS Supports upto seven (7) disks under DOS 5.0.

I/O Operating Environment

Wndows NT, Windows for Workgroups, OS/2, NetWare, UNIX (SCO, UnixWare)

Physical Dimension

Length: 5.8 in
Width: 3.9 in

Environmental Ranges

Operating Temperature: 32 to 131 F (0 to 55 C).
Storage Temperature: -40 to 167 F (-40 to 75C)
Humidity (operating): 10% to 95% non-condensing.

Power Requirements:

Operating Voltage +5 0.25 Volts @ 2.0 Amps maximum.

BIOS History

Release: 1.23
Date: 3 April, 1996
CheckSUM EC00
Changes New Adaptec production boards will be fitted with this BIOS. This release is to upgrade older boards.

  • Changes over versions 1.20 & 1.21,
    No longer overwrites the PnP BIOS extensions on Phoenix BIOS.
    No longer overwrites the BIOS EBDA segment.
    The BIOS can now be expanded into a free 64K memory block on warm boot.


    Computing for a Connected World