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The AHA-1520A allows users to take advantage of SCSI's fast connection for their peripherals. With increased data transfer rates and drastically reduced wait times over parallel interface peripherals, AHA-1520A users will experience a dramatic increase in system performance. And since SCSI is the only connection that allows attachments to multiple external as well as internal peripherals, users get more connectivity for their systems with just one card.
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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 95
Microsoft Windows NT

Novell NetWare

Novell NetWare Downloads


SCO Unix

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Product Documentation
User Guide for the AHA-1510A/1520A (PDF 326 KB)
Use Your Product
sense codes described (html 96 kb)
Number of devices
Up to 7 devices under DOS 5.0 and above

Bus System Interface Type

ISA - 16 Bit
External Connectors
built in 50-pin centronics (low density)
Internal Connectors
Data Transfer Rate
10 MB/sec
5 years

Device Protocol

Fast SCSI-2; supports SCSI-1,
SCSI-2, and Fast SCSI-2 devices

Advanced SCSI Features

Advanced SCSI Programming Interface (ASPI) compliant
Multithreaded I/O
Plug-and-Play SCSI
Synchronous and Asynchronous data transfer

SCSI Termination

Single-ended, active, programmable via SCSISelect

Hard Disk Capacity

Up to 8 GBytes per disk

Board Dimensions

6.875 inches (17.5 cm) L
2.375 inches (6.125 cm) H

Power Consumption

5.0V +/- 0.25V @ 0.51 amps
excluding terminator power

Operating Characteristics

0°C to 55°C (32°F to 131°F)

Storage Characteristics

-55°C to 85°C (-40°F to 167°F)
-10% to 95%, non condensing Relative Humidity