This 32-bit PCI-to-Ultra Wide High-Voltage Differential (HVD) SCSI adapter supports up to fifteen HVD SCSI devices. Up to 40MB per second throughput is possible. It provides an internal 50-pin connector, an internal 68-pin connector, and an external 68-pin High-Density connector
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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

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Microsoft DOS
Microsoft Windows 2000
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Hardware Installation
how to install your adaptec pci card (html 74 kb)
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Installing Drivers or Software
cd install netware 401 (html 69 kb)
cdrom in dos (html 69 kb)
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installing 98 driver (html 70 kb)
windows 98 issues (html 70 kb)
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installing windows nt driver (html 82 kb)
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aic7870.dsk options (html 76 kb)
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miniport options (html 70 kb)
2940 winnt 3.x (html 70 kb)
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7800 os/2 diskette (html 69 kb)
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Product Documentation
Install Guide for the AHA-2944UW (PDF 158 KB)
Use Your Product
scsi<i>select</i> user's guide (html 83 kb)
scsi terms explained (html 77 kb)
sense codes described (html 96 kb)
Supported Operating Systems
Microsoft MS-DOS 3.x, 4.x, 5.x 6.x
Microsoft Windows 3.10
Microsoft Windows for Workgroups 3.11
Microsoft Windows 95, 95a, 95b, 95c
Microsoft Windows 98
Microsoft Windows 98 Second Edition
Microsoft Windows NT 3.51
Microsoft Windows NT 4.0
Microsoft Windows Millennium Edition
Microsoft Windows 2000
Microsoft Windows XP (driver embedded)
Microsoft Windows Server 2003 (driver embedded)
Microsoft Windows Vista x86, 32-bit
Microsoft Windows Server 2008 x86, 32-bit
IBM OS/2 2.x
IBM OS/2 Warp Client 3.0, 4.0
IBM OS/2 Warp Server 3.0, 4.0
Novell NetWare 3.1x, 3.2
Novell NetWare 4.0, 4.01
Novell NetWare 4.10, 4.11, 4.12, 4.20
Novell NetWare 5.0, 5.10
SCO Openserver 5.0, 5.01, 5.02, 5.03, 5.04, 5.05
SCO Unix
SCO UnixWare 2.0, 2.10, 2.11
Customer Needs
  Extended cable lengths for external HVD Ultra Wide SCSI Devices
System Environment
  For Servers
Number of devices
Up to 15 High Voltage Differential

Bus System Interface Type

32-bit PCI
External Connectors
68-pin High-Density (for Ultra Wide SCSI)
Internal Connectors
50-pin standard (Ultra SCSI) and 68-pin high-density (Ultra-Wide SCSI)
Data Transfer Rate
Up to 40MB/sec
System Requirements
  • Intel PC or equivalent
  • Available PCI slot
Package Contents
  • AHA-2944UW PCI-to-SCSI host adapter
  • Adaptec EZ-SCSI Software (CD-ROM version)
  • Easy CD Creator Lite software
  • Installation and user's guides
  • Warranty card
  • Registration card
5-year manufacturing and materials warranty

Peripheral Support

15 High Voltage Differential Peripherals

Electrical Drivers

High Voltage Differential, active, programmable via SCSISelect configuration utility

Board Dimensions

6.87" x 3.87"

Regulatory Certification

FCC, UL, C-tick, CE, VCC

Mean Time Before Failure (MTBF)

411,093 hours at 40 degrees C