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Adaptec Ships Ultra320 Adapter

Controller offers 546 MB per second throughput over two channels By Dave Nagel
Adaptec today started shipping its fastest Ultra320 SCSI controller to date. The controller--the 39320D--scales to 546 MB second over two channels and up to 1.09 GB per second over two controllers.

According to Adaptec, in sequential read and write performance tests of the 39320D with Seagate Cheetah 10K RPM Ultra320 SCSI disk drives, the Adaptec controller doubled data transfer rates from 273 megabytes per second over one channel in a five-drive configuration and to 546 megabytes per second over two channels with 10 drives.

The card features the AIC-7902 Ultra320 ASIC, a 64-bit/133MHz PCI-X interface and support for up to 30 SCSI devices across two Ultra320 SCSI channels. The AIC-7902 also offers low power consumptions for cooler operating temperatures, running at a little more than 4 Watts, according to the company.

The 39320D and AIC-7902 are now shipping to major OEM customers. The controller offers RAID 1 embedded hardware mirroring and RAID 0 and 10 support; support for up to six drives per array plus a hot-swappable spare; up to two arrays per SCSI channel; auto-recovery of a failed disk drive; and background data scrubbing. For more information, visit

Contact the author: Dave Nagel is the producer of Creative Mac and Digital Media Designer; host of several World Wide User Groups, including Synthetik Studio Artist, Adobe Photoshop, Adobe InDesign, Adobe LiveMotion, Creative Mac and Digital Media Designer; and executive producer of the Digital Media Net family of publications. You can reach him at

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