Crucial 16GB Kit (8GBx2) DDR4 2400 MT/s (PC4-19200) SR x8 SODIMM 260-Pin for Mac – CT2K8G4S24AM

Increases Mac system performanceCompatible for iMac (Retina 5K, 27-inch, 2017) iMac18, 3 3. 4GHz or 3. 5GHz Intel Core i5Every single module extensively tested at the component and module levelAvailable in SODIMMs, RDIMMs, and ECC UDIMMs. DIMM Type - Unbuf