New IBM ServeRAID-4 Ultra160 controller options feature an Intel 100 MHz processor and 66 MHz PCI controller to help you optimize performance in your mission-critical RAID data storage applications. These controllers deliver excellent performance, scalability and control for entry-level and midrange storage environments.ServeRAID-4Mx Ultra160 SCSI Controller is a two-channel controller that supports midrange RAID storage requirements. The controller supports up to 14 HDDs per channel, providing massive RAID-protected data storage, as well as nine RAID levels, providing more choices to meet unique business needs.