What are the specs?

The AHA-3940AUWD is a Multi-channel Ultra-wide SCSI controller. The 'D' denotes that this is a "Dual-headed" controller, meaning that it has connectors for 2 external busses. Since it is based on Adaptec's 7800 controller, it is, as I recall, goodfor about 40MB/s. It is a PCI-bus card (of course) and will be easily supported on a variety of operating systems.

THis is a card that I would buy for a server, *not* a workstation. This is simply too much card, and therefore probably simply too expensive, to suit the needs of a workstation.

This question look familiar. 2 answers were given, 1 a hyperlink

http://www.adaptec.com/support/overview/aha3940au_auw.html

and 1 a verbose cut and paste from that page.

Both answers were rejected.

Just what exactly is the question, ifthe manufacturer's specification page doesn't provide it?

TECHNICAL SPECIFICATIONS
Computer Bus PCI Local bus
Interface Protocol Bus master DMA
Device Protocol AHA-3940U:8-bit UltraSCSI
AHA-3940UW:16-bit UltraSCSI
Host Bus Data TransferRate Up to 133 Mbytes/sec
SCSI Synchronous Data Rate AHA-3940U: 40 MByte/sec (20 MByte/sec per channel)
AHA-3940UW: 80 MByte/sec (40 MByte/sec per channel)
SCSI Asynchronous Data Rate AHA-3940U: 6 MByte/sec (3 MByte/sec per channel)
AHA-3940UW: 12 MByte/sec (6 MByte/sec per channel)

etc etc

This question was closed by the author

Thankz for the info guys cuz it came in handy when I had to write a comparison on this and another scsi controller card.