Adaptec user manual AHA-1740A/1742A/1744 Product Specifications

EISA-to-Fast SCSI Host Adapter Overview

Product Specifications

The following table lists some of the physical product descriptions relating to the AHA-1740A/1742A/1744 Host Adapters.

Table 1-3. AHA-1740A/1742A/1744 Product Specifications

Physical Dimensions

Length	13-3/8 inches
Width	5/8 inch
Height	5 inches

Standard EISA-compatible form factor

Power Requirements

+ 5.0 +/- 0.25 Volts at 2.9 Amps (maximum)

Environmental Requirements

Temperature -40° - 75° C (operating or storage)

Reliability Information

Mean Time Between Failures (MTBF): 100,000 hours (calculated per Mil Handbook 217E, ground benign, 40 C)

Mean Time Between Failures (MTBF): (calculated)

1740A

1742A

1744

60,462 hours

57,600 hours

54,856 hours

Mean Time To Repair (MTTR): 30 minutes

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