![Amazon.com: OWC 16GB PC19200 DDR4 2400MHz SO-DIMM Memory Compatible with Mid 2017 iMac 27" w/Retina 5K Models and Compatible PCs (OWC2400DDR4S16G) : Everything Else Amazon.com: OWC 16GB PC19200 DDR4 2400MHz SO-DIMM Memory Compatible with Mid 2017 iMac 27" w/Retina 5K Models and Compatible PCs (OWC2400DDR4S16G) : Everything Else](https://m.media-amazon.com/images/I/81UuOfRoafS._AC_UF894,1000_QL80_.jpg)
Amazon.com: OWC 16GB PC19200 DDR4 2400MHz SO-DIMM Memory Compatible with Mid 2017 iMac 27" w/Retina 5K Models and Compatible PCs (OWC2400DDR4S16G) : Everything Else
![OWC 64GB (4 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S64S) at Amazon.com OWC 64GB (4 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S64S) at Amazon.com](https://m.media-amazon.com/images/I/912qh8QN31L._AC_UF894,1000_QL80_.jpg)
OWC 64GB (4 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S64S) at Amazon.com
![OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com](https://m.media-amazon.com/images/I/81nVQGHArTS.jpg)