RAID arrays, one only seen in extremely high-end server environments and only available on expensive SCSI controllers has moved to the desktop, and with a vengeance.
Back in the late 90’s you would need to have a separate IDE controller card, and use a modification to hack the card into a unit that could recognise RAID arrays. Next came the cards with the modifications built in, so no more hacks were needed. Finally we got these chips built onto the motherboards themselves, so a PCI slot wasn’t required to be used for a RAID array to come to pass.
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