RAID and storage adapters.
A RAID controller is a hardware device or software program used to manage hard disk drives (HDDs) or solid-state drives (SSDs) in a computer or storage array so they work as a logical unit. ... (Some RAID controllers can also be integrated with the motherboard.)
If you are in need heavy duty storage for your data, Tekmart has the refurbished RAID options you are searching for. Why buy new and bust your budget, when refurbished RAID can perform just as well if not better than brand new.
Figure 1: A sample representation of a raid controller card (Dell PowerEdge H800); parts we stock at Tekmart Africa.