For ultimate hard drive speed, ignore the built-in EIDE and spring for an Ultra Wide SCSI III (Adaptec AHA -2940UW) host adapter.
AHA -2940 ULTRA TECHNICAL SPECIFICATIONS
Adaptec Host Adapter: Computer Bus: Interface Protocol: Host Bus Burst Data Rate: Peripheral Bus: SCSI Synchronous Data Rate: SCSI Asynchronous Data Rate: Device Protocol: Advanced SCSI Features:
BOOT Magazine August 1996
External Connector: Electrical Drivers: Hard Disk Capacity: Device Support: Electrical Termination: Operating Environment:

Adaptec AHA-2940UW

PC PRO Magazine June 1996
AHA-2940AU PCI Local Bus Bus master DMA Up to 133 Mbytes/sec 8-bit Ultra SCSI 20 Mbytes/sec 6 Mbytes/sec SCSI-1, SCSI-2, SCSI-3, Ultra SCSI Advanced SCSI Programming Interface (ASPI) compliant Scatter/gather Disconnect/reconnect Tagged command queuing Synchronous and asynchronous data transfer Bootable from attached disks 50-pin high-density Single-ended, active, programmable via SCSISelect Extended translation supports drive capacity up to 8 gigabytes per disk Up to 7 devices under DOS 5.0 and above Single-ended, active, software-controlled Windows 95, Windows 3.1, Windows NT, Windows for Workgroups, DOS, IBM OS/2, NetWare, SCO UNIX, UnixWare

THE BEST

CONNECTION
AHA -2940 ULTRA WIDE TECHNICAL SPECIFICATIONS
If you need more speed, more hard disk space, or plan to connect several devices, SCSI is the way to go.
Adaptec Host Adapter: Computer Bus: Interface Protocol: Device Protocol: SCSI Bus Width: PCI Bus Data Transfer Rate: Synchronous Data Transfer Rate: Number of Attached Devices Supported: Electrical Termination: Advanced Features:
AHA-2940UW PCI expansion bus Bus Mastering with DMA SCSI-1, SCSI-2, SCSI-3 8- and 16-bit (Fast, Wide, and Ultra) Up to 133 Mbytes/sec Up to 40 Mbytes/sec Up to 15 single-ended SCSI peripheral devices Single-ended, active, software-controlled Support for scatter/gather, disconnect/reconnect, tagged command queuing Independent negotiation of high speed data transfers (Fast, Wide, and Ultra) with each peripheral device SCSI Manager 4.3 compliant Bootable from attached disks

WINDOWS NT

WORKSTATIONS

PC Magazine July 1996

Adaptec, Inc. 691 South Milpitas Boulevard Milpitas, California 95035 Tel: (408) 945-8600 Fax:(408) 262-2533
Literature: 1-800-934-2766 (USA and Canada) or (510) 732-3829
1996 Adaptec, Inc. All rights reserved. Adaptec, the Adaptec logo, AHA, and SCSISelect are trademarks of Adaptec, Inc. Windows, Windows 95, Windows NT, and the Windows NT logo are registered trademarks of Microsoft Corporation used under license. All other trademarks used are owned by their respective owners.
P/N 980286-011 9/96 Printed in U.S.A.
SCSI, The Right Choice For Windows NT Workstations
SCSI has always been the interface of choice for Windows NT servers. Now, as Windows NT moves to the desktop, SCSI is your best choice to keep data moving as fast as possible, to provide the exibility of removable disk drives, to connect to the fastest and largest capacity hard drives, and to deliver the performance power users want from Windows NT on the desktop.
SCSI, The Right Choice For Windows NT Workstations AHA -2940 Ultra

AHA -2940 Ultra Wide*

High-Performance UltraSCSI For Windows NT Workstations and Desktops OVERVIEW The AHA-2940 Ultra host adapter delivers UltraSCSI speed for demanding applications and high-performance peripherals. Its advanced features improve system performance, especially in multitasking environments. The AHA-2940 Ultra adapter also offers unsurpassed compatibility. KEY BENEFITS Double The Data Transfer Speed. The AHA-2940 Ultra host adapter doubles the Fast SCSI data transfer rate to 20 Mbytes/second, accelerating system performance and user productivity. Time-Saving Multitasking. The AHA-2940 Ultra host adapter makes true multitasking possible, enabling the system CPU to access data on multiple peripheral devices simultaneously to improve productivity. Unparalleled Compatibility. All Adaptec host adapters are rigorously tested with hundreds of different SCSI peripherals and systems, which makes them the most compatible and reliable host adapters in the marketplace. Quick And Easy Installation. Simply insert the AHA-2940 Ultra host adapter in the PCI slot and the system BIOS will assign resources to it.

High-Performance Ultra Wide SCSI For Windows NT Workstations and Entry-Level Servers OVERVIEW When maximum performance matters, the Adaptec AHA-2940 Ultra Wide host adapter delivers, with twice the connection capacity and four times the data bandwidth. Plus, it offers true multitasking and unequaled reliability and compatibility. KEY BENEFITS Maximum Transfer Speed. The AHA-2940 Ultra Wide host adapter bursts data on the SCSI bus at up to 40 Mbytes/second for the latest SCSI drives and all other SCSI devices. Time-Saving Multitasking. The AHA-2940 Ultra Wide host adapter makes true multitasking possible, enabling the system CPU to access data on multiple peripheral devices simultaneously to improve productivity. Maximum Connectivity. With the AHA-2940 Ultra Wide host adapter you can simultaneously support as many as 15 SCSI devices, both 8-bit and 16-bit, in any combination, for maximum conguration exibility. Quick And Easy Installation. Simply insert the AHA-2940 Ultra Wide host adapter in the PCI slot and the system BIOS will assign resources to it.
*Also known as PCI Ultra Wide SCSI Master.

AHA -2940 Ultra

Top Performance, True Multitasking
SCSI delivers the fastest throughput and the best performance. For the kind of users who want Windows NT on their desktops, EIDE cant begin to satisfy their need for speed. Check out the chart below. Youll see theres just no comparison. Whats more, SCSI hard drives are designed to optimize data transfer in multitasking environments. They incorporate advanced features such as the highest capacity, largest cache, fastest spin rate, fastest seek time, tagged queuing. and disconnect /reconnect. In fact, without SCSI, true multitasking is not possible. But with SCSI, just think of the possibilities for Windows NT on the desktop.
DRIVE INTERFACE MAXIMUM DATA TRANSFER RATE
EIDE MODE 4 (FASTEST EIDE AVAILABLE) ADAPTEC AHA-2940AU PCI ULTRA SCSI ADAPTEC AHA-2940UW PCI ULTRA WIDE SCSI
16.7 MB/SEC 20 MB/SEC 40 MB/SEC

A powerhouse operating system such as Windows NT needs the interface that can deliver the most powerful performance: SCSI.
Proven, Hassle-Free Installation
Anyone who has ever installed an Adaptec SCSI host adapter nds themselves wishing everything in life was so easy. This is what one customer had to say about the speed, simplicity, and reliability of an Adaptec installation: The project was nished so fast, no one believed all the data had transferred. Upon verication, every fragment of data was there. Having installed hundreds (of Adaptec SCSI host adapters), this was no surprise to me. Adaptec has proven reliable in our ofce, time after time. When it comes to SCSI controllers, we only use the best. We only use Adaptec. Alen Harris, Micro Focus PC Technician
Connect With Adaptec For Satisfaction
SCSI not only delivers the robust performance and true multitasking users want from Windows NT on the desktop, it also enables them to connect to the power peripherals they need. CD recordables, highperformance removables, or any external hard drive can only be added with SCSI. So for everything a user wants and needs from Windows NT on the desktop, only Adaptec SCSI delivers complete customer satisfaction.

AHA -2940 Ultra

High-performance UltraSCSI for desktop PCs and workstations

Overview

The AHA-2940 Ultra host adapter delivers UltraSCSI speed for demanding professional applications and highperformance peripherals. With its bus mastering architecture and advanced SCSI features, the AHA-2940 Ultra host adapter improves system performance, especially in multitasking environments. In addition, the AHA-2940 Ultra adapter offers unsurpassed system and peripheral compatibility. I/O, that allow the system CPU to access data on multiple peripheral devices simultaneously. Unparalleled compatibility All Adaptec host adapters are rigorously tested with hundreds of different SCSI peripherals and systems, which makes them the most compatible and reliable host adapters in the marketplace. The AHA-2940 Ultra adapter is also fully compatible with all popular desktop and network operating systems, including DOS, Windows, Windows NT, Windows 95, OS/2, NetWare, and UNIX. Easy installation Installing the AHA-2940 Ultra host adapter is quick and easy. Simply insert the host adapter in the PCI slot and the system BIOS will assign resources to it. Using the SCSISelect utility, users can then fine tune the performance of the adapter by making on-screen choices from the utility menu. Under DOS, Windows, and Windows 95 environments, Adaptec EZ-SCSI software automatically determines what hardware is present, loads the correct drivers, and modifies system configuration files. Completely compatible with Windows 95, the AHA-2940 Ultra host adapter utilizes advanced Plug-and-Play features that automatically assign IDs and control termination. The complete kit The AHA-2940 Ultra kit provides everything necessary for connecting high-performance SCSI peripherals to PCs and workstations. It features the AHA-2940AU host adapter board with an internal cable, complete user documentation and Adaptec EZ-SCSI software for simple installation.

Key Benefits

Double the data transfer speed Using UltraSCSI technology, the AHA-2940 Ultra host adapter doubles the maximum data transfer rate on the SCSI bus from 10 MByte/sec to 20 MByte/sec. By increasing the throughput rate between peripherals and the desktop system, the AHA-2940 Ultra adapter accelerates system performance and user productivity. Improved system performance In addition to UltraSCSI speed, the AHA-2940 Ultra host adapter features a high-performance bus mastering architecture that regulates data movement directly between peripherals and system memory. The onboard Adaptec PhaseEngine RISC processor takes over I/O processing from the CPU, which frees it for other tasks. The result is lower CPU utilization and noticeably faster response time. Time-saving multitasking AHA-2940 Ultra host adapter makes true multitasking possible. SCSI technology offers unique features, including disconnect/reconnect, tagged command queuing, and multithreaded

PRODUCT HIGHLIGHTS

20 MByte/sec UltraSCSI data transfer rate High-performance bus master architecture for improved system performance Tested for compatibility with more than 200 systems and peripherals from major manufacturers Compatible with all major operating systems Easy Plug-and-Play installation

COMPLETE KIT CONTENTS

AHA-2940AU PCI-to-UltraSCSI host adapter board Adaptec 7800 Family Manager Set software drivers for Windows NT, Windows 95, OS/2 2.x and 3.x, NetWare 3.x and 4.x, SCO Unix 3.2.x, and UnixWare 1.x and 2.x Adaptec EZ-SCSI software for DOS, Windows, Windows NT, Windows 95, and Windows for Workgroups Includes applications such as: SCSI Backup (Backup Basics), QuickScan, CD Player, Photo CD Viewer (Magic Lantern), Advanced Power Management, SCSI Interrogator, SCSI Disk Partitioner, SCSITutor, SCSIBench Provides device support for hard disks, removable disks, MO, CD-ROM, CD-Recordable, Photo CD, and tape drives and scanners Standard, 3-position internal SCSI ribbon cable Complete user documentation

Data Throughput*

(MByte/sec)

SCSI EIDE

Adaptec AHA-2940 Ultra host adapter delivers true multitasking and cuts waiting time in half!
Benchmark configuration: 90 MHz Pentium, Zappa motherboard with 16 MB RAM and 256 KB Cache; UltraSCSI: AHA-2940U adapter with (2) Quantum Ultra Grand Prix drives; ATA: Intel Triton on-board PCI ATA, (2) Western Digital AC31600 Mode 4 EIDE drives; Windows 95; Caching on and set to 64 KB read-ahead; Adaptec WinIO Benchmark, 4 thread sequential read test. *Throughput is a measure of data transfer rate and CPU overhead.

TECHNICAL SPECIFICATIONS

Computer Bus: Interface Protocol: Host Bus Burst Data Rate: Peripheral Bus: SCSI Synchronous Data Rate: SCSI Asynchronous Data Rate: Device Protocol: Advanced SCSI Features: PCI Local Bus Bus master DMA 133 MByte/sec 8-bit UltraSCSI 20 MByte/sec 6 MByte/sec SCSI-1, SCSI-2, SCSI-3, UltraSCSI -Advanced SCSI Programming Interface (ASPI) compliant -Multithreaded I/O (up to 255 tasks simultaneously) -Scatter/gather -Disconnect/reconnect -Tagged command queuing -Synchronous and asynchronous data transfer -Bootable from attached disks 50-pin high-density Single-ended, active, programmable via SCSISelect Extended translation supports drive capacity up to 8 gigabytes per disk Up to 7 devices under DOS 5.0 and above Single-ended, active, software-controlled Windows 95, Windows 3.1, Windows NT, Windows for Workgroups, DOS, IBM OS/2 2.x and 3.x, NetWare 3.12 and 4.x, SCO UNIX 3.2.x, UnixWare 1.x and 2.x

Adaptec, Inc. 691 South Milpitas Boulevard Milpitas, California 95035 Tel: (408) 945-8600 Fax: (408) 262-2533 Adaptec Europe-Belgium Tel: (32) 2-352-34-11 Fax: (32) 2-352-34-00 Adaptec Japan-Tokyo Tel: (81-3) 5276-9882 Fax: (81-3) 5276-9884 Adaptec Singapore Tel: (65) 278-7300 Fax: (65) 273-0163 Literature: 1-800-934-2766 (USA and Canada) or (510) 732-3829 Ordering Software: 1-800-442-7274 (USA and Canada) or (408) 957-7274 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): (408) 945-7727 (up to 28,800 bps, using 8 bits, 1 stop bit, no parity) Interactive FAX: (408) 957-7150
Copyright 1996 Adaptec, Inc. All rights reserved. Adaptec, the Adaptec logo, AHA, SCSISelect, EZ-SCSI, SCSI Interrogator, SCSI Backup, SCSIBench, SCSITutor, and PhaseEngine are trademarks of Adaptec, Inc., which may be registered in some jurisdictions. Magic Lantern is a trademark of InCat Systems Software, USA, an Adaptec company. Windows, the Windows logo and Windows 95 are registered trademarks and Windows NT and the Windows NT logo are trademarks of Microsoft Corporation used under license. All other trademarks used are owned by their respective owners. Information supplied by Adaptec, Inc. is believed to be accurate and reliable at the time of printing, but Adaptec, Inc. assumes no responsibility for any errors that may appear in this document. Adaptec, Inc. reserves the right, without notice, to make changes in product design or specifications. Information is subject to change without notice.
External Connector: Electrical Drivers: Hard Disk Capacity: Device Support: Electrical Termination: Operating Environment:
PHYSICAL AND ENVIRONMENTAL SPECIFICATIONS
Length: Height: Operating Temperature: Storage Temperature: Humidity (operating): MTBF: 4.75 inches (12 cm) 3.5 inches (8.75 cm) 0C to 55C -55C to 85C 10% to 90%, non condensing 544,264.3 hours (Bellcore, TR-NWT-000332, Method I, QL-I)

SCO UnixWare

P/N 980273-011 8/96 Printed in U.S.A.