This product includes:Adaptec Ultra160 SCSI 29160N - storage controller - Ultra160 SCSI - PCI.Data Transfer Rate:160 MBps.This 32-bit PCI card gets the most out of high- performance Ultra160 SCSI internal hard drives and popular external narrow SCSI devices.Connectivity to internal hard drives and narrow SCSI desktop devices.Number of devices: 15 devices.Bus System Interface Type: 32-bit PCI. External Connectors: One 50-pin for Ultra SCSI. Internal Connectors: One 68-pin for LVD SCSI.pre owned.fully tested.60 days usedmac warranty.

ATA/100 RAID card for Macintosh How Fast Is The New Acard ATA-100+ RAID PCI Card? July 16th, 2001 by, Bare Feats Mad Scientist Finally, we now have ATA/100 cards for the Mac. Acard will be showing two models at the New York MacWorld Expo 2001 (booth 2224). I asked to test the Hardware RAID version or what I like to call the 'AHARD 100.' I set it up with two IBM 60GXP's (the fastest ATA/100 drives) and switched on the dual drive hardware RAID 0 (striped) mode. I compared it to the ACARD AHARD/66 (a.k.a. Sonnet Tempo RAID 66), dual channel FireWire RAID, and dual channel Ultra160 SCSI RAID (Adaptec 39160 and two Cheetah 15K's).

Acard Aec67162m Pci Ultra160 Scsi Controller For Macbook Pro

FIRST 'REAL WORLD' TESTS NOTE: The Photoshop graph is total seconds, not megabytes per second. It shows how long it takes to Rotate a 27MB document when Photoshop is forced to write to its disk cache. Want to see MORE RESULTS?

BENCHMARKS are on PAGE. OBSERVATIONS The Acard ATA/100+ RAID PCI card is no faster than the ATA/66 version of the same card. A single ATA/100 drive on an ATA/100 PCI card will NOT go faster than a single ATA/100 drive on an ATA/66 PCI card (or internal ATA/66 interface).

The Ultra160 SCSI setup did NOT smoke the ATA/100 card except on the Photoshop test. And in the 'Duplicate Lotz of Documents' test, it was the SLOWEST by far. This is shocking when you consider the Ultra160 setup was using 15,000 rpm Cheetah drives and the Adaptec 39160 controller! The FireWire setup, though much faster in the last year's 'crop,' is still slower than Ultra ATA and Ultra160 SCSI.

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CONCLUSIONS If you are looking to see a speed increase in a single ATA/100 drive by switching from ATA/66 to ATA/100, you will be disappointed. I believe it is NOT the ATA/100 card's fault. The disk drives just can't go any faster. Unless you can find a single ATA/100 drive that does sustained read/write at over 66MB/sec, upgrading to an ATA/100 card will not buy you any more speed. Even if you create a dual drive array, the ATA/100 has no advantage over ATA/66. Why then should I buy the ATA/100 PCI card over the cheaper ATA/66 model?

Future bandwidth. As newer, faster hard drives are made, you'll be ready to take advantage of the speed. What ATA/100 card makers do claim that the ATA/100 has better firmware code that improves support for Digital Video and older Power Macs.

I haven't tested these attributes in this session but when I do, I'll add a comment and/or link to this page. By the way, I created a hybrid four drive array using both the ATA/100 card and the ATA/66 cards. It was a bit unstable but I saw over 100MB/sec sustained read and write! Now if someone would just do a dual channel version of the ATA/100. Hi ho Silver!