suanmei6 years ago000Hello, will this memory fit in an iMac 27", 5K, 2017? MerciShow in original language (German)uelipfister5 years ago+110 Helpful answerNo, for the 2017 iMac you have to choose the one with 2400 MHZ. PC4-19200 (2400 MHz), without buffer, without parity, 260-pin, DDR4 SDRAM with 2400 MHz. UeliShow in original language (German)Comment