J4717 Dell Perc4 Dual Channel Pci-x Ultra320 Scsi Raid Controller Card

A RAID (Redundant Array of Independent Disks) controller card is a hardware device that manages the data storage and retrieval process on a computer. It is responsible for creating and managing RAID arrays, which combine multiple hard drives to improve performance and data redundancy.

RAID controller cards come in different forms, such as PCI, PCI-X, and PCIe, and they use different RAID levels, such as RAID 0, RAID 1, RAID 5, and RAID 10, depending on the specific requirements of the system.