NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT Compatible with Apple iMac w/Retina 5K display...

NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT Compatible with Apple iMac w/Retina 5K display 27-inch Early 2019 19,1 Brand: NEMIX RAM Series: Apple iMac/Mac Mini Compatible Series Memory Capacity: 64GB (4 x 16GB) Speed: DDR4 2666 (PC4 21300) Buffered/Registered: Unbuffered Chipset: Major OEM Samsung, Micron, Hynix Voltage: 1.20V