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AHA-3940UW-OF
The Adaptec AHA-3940UW/OF and AHA-3944UW/OF host adapters deliver superior I/O performance for UltraSPARC systems with PCI. Combining multiple channels and UltraSCSI speed, the AHA-3940UW/OF and AHA-3944UW/OF adapters move data faster to meet the growing demands of workstations and servers and leading-edge applications. In fact, these host adapters transfer data at up to 80 MByte/sec--twice as fast as the highest-performing single-channel UltraSCSI host adapter. With two channels, they accommodate twice as many SCSI peripherals--up to 30 from a single PCI slot.
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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

Unix

Sun Solaris

Hardware Installation
how to install your adaptec pci card (html 74 kb)
Product Documentation
AHA-3940UW/OF and AHA-3944UW/OF (PDF 42 KB)
Use Your Product
scsi terms explained (html 77 kb)
Number of devices
Up to 30 SCSI devices

Bus System Interface Type

32-bit PCI Bus master DMA
External Connectors
Two VHDC 68-pin connectors
Data Transfer Rate
80 MByte/sec

Device Protocol

16-bit UltraSCSI

Advanced Features

  • Multithreaded I/O (up to 255 tasks simultaneously)
  • Scatter/gather
  • Disconnect/reconnect
  • Tagged command queuing
  • Synchronous and asynchronous data transfer

Electrical Connectors

Single-ended, automatic, active, programmable via SCSISelect
Single-ended

Operating Environment

Solaris 2.5.1 and later

Regulatory Compliance

FCC Class B, CE, IEC

Board Dimensions

6.875 inches (17.463 cm) x 4.0 inches (10.16 cm)

Power Consumption

5 V +/- 5% at 2.0 amps maximum

Operating Characteristics

0ºC to 55ºC
10% to 90%, noncondensing humidity

Storage Characteristics

-55ºC to 85ºC

MTBF (mean time between failures, Bellcore)

276,541.7 hours

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