Adaptec - AHA-3940UW-OF

Home Support

obsolete products

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.

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