Adaptec - AHA-3940UW

Home Support

scsi host adapters

AHA-3940UW

Each AHA-3940UW host adapter has two SCSI channels, each of which functions as an independent host adapter. With the AHA-3940UW, you can connect up to fifteen 16-bit (Wide) SCSI devices per channel. Using a 68-pin-to-50-pin converter, you can also combine 8-bit and 16-bit SCSI devices, up to 15 per channel; up to seven can be 8-bit devices.

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

IBM OS

IBM OS-2

Microsoft

Microsoft DOS

Microsoft Windows 2000

Microsoft Windows 3.1x

Microsoft Windows 7

Microsoft Windows 95

Microsoft Windows 98

Microsoft Windows Millennium

Microsoft Windows NT

Microsoft Windows Server 2008

Microsoft Windows Vista

Novell NetWare

Novell NetWare Downloads

Unix

SCO Unix

SCO UnixWare

Hardware Installation: how to install your adaptec pci card (html 74 kb); pci architecture overview (html 74 kb)

Installing Drivers or Software: cd install netware 401 (html 69 kb); 7800 netware instructions (html 81 kb); 7800 family manager set 98 contents (html 68 kb); installing 98 driver (html 70 kb); windows 98 issues (html 70 kb); 7800 miniport issues in 95 (html 70 kb); installing windows nt driver (html 82 kb); 7800 supported adapters (html 72 kb); aic7870.dsk options (html 76 kb); 7800 netware contents (html 70 kb); 7800 issues for netware (html 71 kb); 7800 netware notes (html 70 kb); miniport options (html 70 kb); os/2 driver installation (html 68 kb); loading adaptec dsk drivers (html 71 kb); netware 3.12 cd install (html 68 kb); 7800 unix driver instructions (html 75 kb); os/2 driver notes (html 77 kb); 7800 os/2 diskette (html 69 kb); 7800 os/2 issues (html 68 kb); sco unix driver installation (html 75 kb)

Interoperability: 7800 fms support list (html 72 kb)

Product Documentation: User Guide for the AHA-3940U/UW/UWD (PDF 473 KB); Install Guide for the AHA-3940U/UW/UWD (PDF 161 KB)

Use Your Product: scsi<i>select</i> user's guide (html 83 kb); scsi terms explained (html 77 kb); sense codes described (html 96 kb)

Number of devices
	Up to 30 devices

Bus System Interface Type
	PCI Local Bus

External Connectors
	One 68-pin high-density external connector share channel A.

Internal Connectors
	One 68-pin, high-density internal connector channel A and B

Data Transfer Rate
	80 MByte/sec (40 MByte/sec per channel)

Package Contents
	AHA-3940U or AHA-3940UW PCI MultiChannel host adapter with SCSISelect utilityAdaptec EZ-SCSI software for DOS and WindowsAdaptec 7800 Family Manager Set softwareAdaptec CI/O Single Server software Complete hardware and software documentationTwo internal SCSI ribbon cables (external cable not included)

Warranty
	5 years

Supported Protocols

16-bit UltraSCSI

Advanced SCSI Features

Advanced SCSI Programming Interface (ASPI) compliant
Multitasking operating system support (through scatter/gather, disconnect/reconnect, tagged command queuing support)
Independent negotiation of high-speed data transfers (Fast, Wide, and synchronous) with each device
Support for 255 simultaneous active SCSI commands per channel

SCSI channels