Apple Certified SO-DDR4 2666MHz for iMac 27″ (2019)

Technology: DDR4 SO-DIMM 260 Pin Density: 2 x 16GB (16384MB) RoHS: Yes Pin Count: 260-pin Op. Temp.: 0C to +85C Data Rate: DDR4-2666 Speed: PC4-21300 Voltage: 1.2V Low Noise 8-Layer PCB