MG129 Dell Perc 5/ir Single Channel PCI-Express SAS-SATA Raid Controller

A RAID (Redundant Array of Independent Disks) controller is a hardware component that is used to manage multiple hard drives in a computer system. It is responsible for distributing data across multiple drives and providing redundancy in case of a drive failure. RAID controllers come in different types, including hardware and software RAID controllers.

A hardware RAID controller, like the Dell MG129, is a dedicated piece of hardware that is responsible for managing and controlling the data on the hard drives. It provides better performance and reliability than software RAID controllers, which rely on the computer’s CPU to manage the data.