Which Devices Offer Command Queuing?
Intel's ICH6 chip, a component of the new 915 and 925 chipsets, can support native command queuing.
There are two different types: tagged command queuing, which has been quite common in SCSI environments for years, and then there's native command queuing. The native version offers some additional features and a longer queue. Currently, only few controllers are capable of supporting command queuing. They include Intel's ICH6 Southbridge, part of the new 925/Alderwood and 915/Grantsdale chipsets, as well the Silicon Image Sil3124, which is only available as a plug-in card so far.
The Sil3124 by Silicon Image can also handle Command Queuing
