While you can build a software RAID using the latest Mac and PC hardware and software, you might not like the downside: Not only does a software RAID use your computer's processing power, but if your operating system crashes, the software RAID goes with it — fatally corrupting your media.
CalDigit's low-cost ($549) hardware RAID Card answers that via its dedicated Intel processor and 256MB of built-in cache memory. This frees up the CPU on Mac, PC, or Linux systems — while protecting your edits. The card, which requires a PCIe slot, supports up to 16TB of external storage. Meanwhile the graphics interface RAID Shield simplifies setup. www.caldigit.com