Will this work with "iMac (Retina 5K, 27-inch, Late 2015)" and support 5K resolution through existing iMac's Thunderbolt 2?

Previously I connected two "iMac (Retina 5K, 27-inch, Late 2015" with one as a target display and could not get a true 5K resolution on the target! Can this new display be connected to iMac (Retina 5K, 27-inch, Late 2015 via the existing Thunderbolt 2 and function as full 5K resolution?

LG UltraFine 5K Display

LG UltraFine 5K Display

Product No Longer Available

1 Answer from the Community

  • 5K @ 60 Hz requires more than the 20 Gbps that Thunderbolt 2 allows. Therefore, on the iMac with Thunderbolt 2 ports, this 5K display will work only as 4K @ 60 Hz.