IMAC and old GForce Hard Drives

[rshenise]

I just took ownership of the IMAC 27" 5K Retna Display and love it..although two of my GForce drives that were used in conjunction with my MAC Book Pro will not open when connected to my new IMAC 5K...
Is there a fix?

 

[im2slick4u]

Yes. Are these GForce hard drives made by nvdia or radeon? If it is radeon i would recommend returing them because radeons are cheap. Nvdia u can just plug into mac and work.