Compatible with iMac models A1418 and A1419. Available for around $39 to $52 at eBay - mybagpack.
Because it links two physical drives into one volume, if either component fails, all data on both drives typically becomes unreadable. Purchasing and Replacement Options
Retailers like OWC offer internal storage upgrade bundles starting around $12.99 to $34.99 , which include the tools and sensors needed to replace or install new drives in older iMacs. Modern Alternatives