Adaptec SCSI CARD 2940U2W Brochure

Product Highlights

■

80 MByte/sec data burst
rates on the Ultra2 SCSI bus

■

SpeedFlex™ technology
which allows simultaneous
operation of Ultra2 and Ultra
devices at the full burst rate
of each bus

■

Extended cable lengths of
up to 12 meters for Ultra2
devices

■

All four connectors on card
can be used concurrently

■

Connect up to 15 SCSI
peripherals

■

Tested for compatibility
with over 350 systems
and peripherals

SCSI CARD 2940U2W

Assured Ultra2 SCSI Performance and Maximum
Configuration Flexibility

Overview

As the power of applications, processors,
and storage devices increase, high-end
computer users are seeking ways to
optimize their system performance.The
SCSI Card 2940U2W provides the
throughput speed, flexibility,and com­patibility required to optimize today’s
workstations and PC servers.It provides
Ultra2 SCSI data transfer rates u p to 8 0
MByte/sec and optimizes the perfor­mance of all peripherals attached to the
card with SpeedFlex technology.By
providing 4 connectors and extended
cable lengths, the SCSI Card 2940U2W
also allows for maximum system con­figuration flexibility.

Key Benefits

Maximum Performance

The SCSI Card 2940U2W can burst
data up to 80 MByte/sec on the Ultra2
SCSI bus, which doubles the maximum
burst rate of Wide Ultra SCSI. This
Ultra2 SCSI transfer rate translates
into increased performance of data
intensive applications.

Assured Ultra2 Performance With
SpeedFlex T echnology

The SCSI Card 2940U2W features
SpeedFlex technology which ensures
the most performance from Ultra2
peripherals by creating two electroni­cally isolated SCSI bus segments on the
card—an Ultra2 segment and an Ultra
SCSI segment. These two segments
enable the SCSI Card 2940U2W to
simultaneously operate at both Ultra2
SCSI and Ultra SCSI speeds.With
SpeedFlex, the board can support
Ultra2 peripherals at speeds up to 80
MByte/sec on the Ultra2 SCSI bus seg­ment, while simultaneously supporting
Fast and Ultra SCSI devices at speeds
up to 40 MByte/sec on the Ultra SCSI

bus segment. Without SpeedFlex tech­nology,any Fast or Ultra SCSI peripheral
connected to an Ultra2 SCSI bus will
drop the maximum burst rates of all
peripherals on the bus to the Ultra
SCSI performance level.

Maximum Configuration Flexibility

The SCSI Card 2940U2W offers maxi­mum configuration flexibility by
quadrupling the allowable length of the
SCSI bus to a maximum of 12 meters.
This feature is particularly useful when
configuring external storage and clus­tered servers.In addition,the SCSI Card
2940U2W provides four connectors,
which can all be used simultaneously,
and four SCSI cables.The cables enclosed
with the kit include a terminated Ultra2
cable and an internal-to-external 50-pin
cable, which improve ease of installation
and enable a wide variety of system
configuration options.

Highest Quality,Maximum Compatibility

The latest in a long line of PCI-to-SCSI
cards from Adaptec®, the SCSI Card
2940U2W has been thoroughly tested
with over 350 systems and peripherals
to deliver the utmost in reliability and
compatibility.As the industry leading
manufacturer of SCSI cards, Adaptec
assures the widest possible compatibility,
now and in the future.

80 MByte/sec

80 MByte/sec

Wide Ultra2 SCSI

80

80

60

60

40

40

20

20

20 MByte/sec

20 MByte/sec

Ultra SCSI

Ultra SCSI

Maximum SCSI Burst Rate

Maximum SCSI Burst Rate

40 MByte/sec

40 MByte/sec

Wide Ultra SCSI

Wide Ultra SCSI

Wide Ultra2 SCSI

Adaptec, Inc.

691 South Milpitas Boulevard
Milpitas, California 95035
Tel: [phone]
Fax: [phone]

Adaptec Europe - Belgium

Tel: [phone]
Fax: [phone]

Adaptec Japan - Tokyo

Tel: [phone]
Fax: [phone]

Adaptec Singapore

Tel: [phone]
Fax: [phone]

Literature:

1-800-934-2766 (USA and Canada)
or [phone]

Pre-Sales Support:

1-800-442-7274 (USA and Canada)
or [phone]

World Wide Web:

http://www.adaptec.com

Internet ftp server: ftp.adaptec.com
CompuServe: GO ADAPTEC
Microsoft Network: GO ADAPTEC
Adaptec USA Bulletin Board
Service (BBS): [phone]

(up to 28,800 baud, using 8 bits,
1 stop bit, no parity)

Interactive Fax: [phone]

SCSI CARD 2940U2W

Complete Kit Contents:

• AHA®-2940U2W PCI-to-Ultra2 SCSI card

• Adaptec Family Manager Set software drivers for Windows NT™ 4.0 & 5.0,
Windows®95, NetWare 3.1X & 4.X,SCO UnixWare 2.1.2,OS/2 Warp 3 & 4,
and SCO Unix 3.2v4.2

• Adaptec EZ-SCSI™:Installation software plus a suite of 32-bit peripheral
management applications

• 68-pin Ultra2 SCSI internal cable with termination

• 68-pin Wide Ultra SCSI internal cable

• 50-pin Ultra SCSI internal cable

• 50-pin internal-to-external Ultra SCSI cable with external bracket

• Complete user documentation

• Five-year warranty card

Technical Specifications

Computer Bus: 32-bit PCI local bus
Interface Protocol: Bus master DMA
Host Bus Burst Data Rate: 133 MByte/sec
Maximum Data Transfer Rate: 80 MByte/sec
Peripheral Bus: 8-bit & 16-bit Ultr a SCSI, 16-bit Ult ra2 SCSI
SCSI Synchronous Maximum
Burst Rates: Ultra2 SCSI-up to 80 MByte/sec in 16-bit mode

Ultra SCSI-up to 40 MByte/sec in 16-bit mode and

20 MByte/sec in 8-bit mode
Device Protocol: SCSI-1, SCSI-2, SCSI-3, Ultra SCSI, Ultra2 SCSI
Advanced SCSI Features: - Multithreaded I/O (up to 255 tasks simultaneously)

- Scatter/gather

- Disconnect/reconnect

- Tagged command queuing
External Connector: - 68-pin High-Density Ultra2 SCSI
Internal Connectors: - 68-pin High-Density Ultra2

- 68-pin High-Density Wide Ultra SCSI

- 50-pin High-Density Ultra SCSI
Device Support: Up to 15 SCSI peripherals (internal or external)

68-pin Wide Ultra
SCSI Connector

Copyright 1997 Adaptec,Inc. All rights reserved.
Adaptec, the Adaptec logo,the Adaptec tag line,
AHA, EZ-SCSI, and SpeedFlex are trademarks of
Adaptec, Inc., which may be registered in some
jurisdictions.All other trademarks are owned by
their respective owners. Information supplied by
Adaptec, Inc., is believed to be accurate and reli­able at the time of printing.Adaptec,Inc.,reserves
the right, without notice, to make changes to prod­uct design or specifications.

P/N 980374-011 12/97 Printed in U.S.A.

68-pin Wide Ultra2

SCSI Connector

Ultra2 SCSI

Segment

50-pin Ultra
SCSI Connector

Ultra SCSI

Segment

AIC-3860

AIC-7890A

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