A-Tech 32GB (2x16GB) RAM for Apple iMac 2017 (27 inch Retina 5K & 21.5 inch Retina 4K) | DDR4 2400MHz SODIMM PC4-19200 2Rx8 1.2V 260-Pin SO-DIMM Memory Upgrade Kit at Amazon.com
Crucial Ballistix Sport LT 2400 MHz DDR4 Laptop iMac Memory Kit 8GB (4G x 2) | eBay
iMac 2019 - upgraded w 2 extra ram and the speed dropped to 2400 MHz? | MacRumors Forums
Apple Memory Module 16GB DDR4 2400MHz SO-DIMM (2x8GB) - Apple
OWC 64GB DDR4 2400 MHz SO-DIMM Memory Upgrade Kit
Timetec Hynix IC 8GB Compatible for Apple 2017 iMac 27-inch w/Retina 5K Display, 2017 iMac 21.5-inch w/Retina 4K or Non-Retina Display DDR4 2400MHz PC4-19200 1Rx8 CL17 SODIMM Memory (Single Rank 8GB)… Laptop
Apple Memory Module 16GB DDR4 2400MHz SO-DIMM (2x8GB) - Apple
Crucial 8GB DDR4-2400 SODIMM Memory for Mac | CT8G4S24AM | Crucial.com
8GB Memory Upgrade for 2017 iMac 27-Inch
8GB iMac Memory for 27-inch Retina - 2019 to Current - Models 19.1 20.1 20.2 | Ramjet.com
Apple Memory Module 32GB DDR4 2400MHz SO-DIMM (2x16GB) - Apple
8GB DDR4 2400MHz PC4-19200 SO-DIMM RAM Memory Upgrade for 2017 iMac 27 inch with 5K Retina Display (PARTS-QUICK) - Walmart.com
Apple 32GB (2 x 16GB) 2400MHz DDR4 SO-DIMM PC4-19200 Memory Upgrade for Late 2015-2017 iMac 27 inch with Retina 5K Display at Amazon.com
Timetec 16GB Compatible for Apple 2017 iMac (27-inch w/Retina 5K, 21.5-inch w/Retina
Crucial 8GB DDR4-2400 SODIMM Memory for Mac | CT8G4S24AM | Crucial.com
Crucial 16GB Kit (2 x 8GB) DDR4-2400 SODIMM Memory for Mac | CT2K8G4S24AM | Crucial.com
Apple Memory Module 32GB DDR4 2400MHz SO-DIMM (2x16GB) | The Summit
Crucial 8GB DDR4 2400 MHz SO-DIMM Memory Module for Mac
Amazon.com: OWC 64GB (4 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with 27" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S64S) : Everything Else
Amazon.com: OWC 8GB (2 x 4GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S08P) : Everything Else