Adaptec AHA-2950U2B - Ultra2 SCSI

Windows device driver information for Adaptec AHA-2950U2B - Ultra2 SCSI

The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter employs the Adaptec Ultra2 technology which is implemented via its device driver. The Ultra2 technology supported by the device driver doubles the data transfer rates of SCSI up to approximately 40 MB per second in 8-bit mode while up to 80 MB per second in 16-bit mode. The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter has a PCI interface that is 64-bit. This PCI interface with the aid of the device driver addresses the requirements of next gen 64-bit servers and workstations while also integrating other performance boosting functions. This device employs a RISC processor 20 MIPS PhaseEngine that can off load I/O command processing coming from the computer’s CPU. It can also double up to 512 bytes the FIFO buffer needed for more proficient usage of the PCI bus.

The device driver for the Adaptec AHA-2950U2B - Ultra2 SCSI host adapter also aids in implementing the LVD or low voltage differential technology. This technology allows the device to provide support for up to a max of 15 devices all on a 12m cable which in turn signifies a noticeable increase over the cable length of Ultra SCSI. Further, when configured point to point, the cable can be increase by up to 25m. This extended cable length will supply flexibility in the configuration of the system, especially in RAID and clustering applications. The Adaptec AHA-2950U2B - Ultra2 SCSI host adapter also has backward compatibility and integrates a highly developed multimode I/O cell that has support for both Ultra2 and single ended devices. In addition, the device driver supports the functionality of using an Adaptec transceiver chip for bridging the compatibility gap between Ultra2 SCSI and Ultra SCSI devices. It is highly recommended you run a free registry scan for and Adaptec AHA-2950U2B - Ultra2 SCSI errors before installing any driver updates.