USA Today has a basic review
of equity-linked CDs (ELCDs):
Equity-linked certificates of deposit, or ELCDs, are a type of CD. CDs are usually FDIC-insured contracts typically between savers and banks that promise some sort of interest rate over a set period of time. ELCDs attempt to give savers the confidence their money is safe and secure, while giving them a chance at getting higher returns.
There are some more issues to consider in this SEC review of ELCDs
Do you know of any examples of rates and terms of recent ELCDs?