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Highly integrated EISA-to-Fast SCSI host adapter with built-in performance enhancing RISC processor delivers dramatic leap in price/performance and storage expansion for EISA-based servers and high performance workstations.
Small Image of AHA-2742AT
DownloadsDocumentationTechnical Specifications

Note: Only drivers that are not included or embedded within a supported operating system are listed below. To see a complete list of supported operating systems see the Product Specifications

Select your operating system or software below

Bios Updates and Other Downloadable Files

Bios Updates and Other Downloads




Microsoft Windows NT

Novell NetWare

Novell NetWare Downloads


SCO Unix

Installing Drivers or Software
cd install netware 401 (html 69 kb)
cdrom in dos (html 69 kb)
unix driver disk conversion (html 69 kb)
loading adaptec dsk drivers (html 71 kb)
netware 3.12 cd install (html 68 kb)
Product Documentation
Install Guide for the AHA-2742AT (PDF 156 KB)
Use Your Product
sense codes described (html 96 kb)
Supported Operating Systems
IBM OS/2 1.3x
IBM OS/2 2.x
Microsoft MS-DOS 5.x
Microsoft MS-DOS 6.x
Microsoft Windows 3.10
Microsoft Windows 95
Microsoft Windows 95a
Microsoft Windows 95b
Microsoft Windows 95c
Microsoft Windows for Workgroups 3.11
Microsoft Windows NT 3.51
Microsoft Windows NT 4.0
Novell NetWare 3.10
Novell NetWare 3.11
Novell NetWare 3.12
Novell NetWare 3.2
Novell NetWare 4.0
Novell NetWare 4.01
Novell NetWare 4.10
Novell NetWare 4.11
Novell NetWare 4.12
Novell NetWare 4.20
SCO Unix
Number of devices
Supports up to seven (7) disks under DOS 5.0 on each channel

Bus System Interface Type

External Connectors
Two flat 50-pin SCSI-2 external high density
Internal Connectors
50-pin SCSI-2 internal
Data Transfer Rate
up to 10 MB/sec
5 years

Device Protocol


Hard Disk Capacity

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

Advanced SCSI Features

Advanced SCSI Programming Interface (ASPI) compliant,
multithreaded I/O,
tagged queuing,
synchronous and asynchronous data transfer,
8 and 16-bit data transfers

Electrical Termination

Single-ended, active, software-controlled

Floppy Drive Support

support two floppy drives (31/2" and 51/4")

Board Dimensions

7 inches (17.8 cm) L
5 inches (12.7 cm) H

Power Consumption

+5.0 +/- 0.25 Volts at 2.0 amps maximum

Operating Characteristics

0 C to 55 C (32 F to 131 F)
10% to 95%, non-condensing Relative Humidity

Storage Characteristics

-40 C to 75 C (-40 F to 167 F)