G.Skill Ripjaws SO-DIMM 8 GB DDR4 2400 MHz C 16 1.2 V Laptop Memory Module at Amazon.com
Amazon.com: v-Color Prism Pro DDR4 16GB(8GBx2)-3200MHz (PC4-25600) CL16 RGB Gaming Desktop Ram Memory UDIMM Hynix IC - Jet Black (TL8G32816C-E6PRKWK) : Video Games
Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15 Desktop Memory Kit - Black (CMK16GX4M2B3000C15) at Amazon.com
Corsair CMK8GX4M2A2400C16 Vengeance LPX 8GB (2x4GB) DDR4 DRAM 2400MHz (PC4 19200) C16 Memory Kit - Black at Amazon.com
G.Skill F4-3200C16D-16GTZR Trident Z RGB Series 16 GB (8 GB x 2) DDR4 3200 MHz PC4-25600 CL16 Dual Channel Memory Kit - Black with Full Length RGB LED Light bar at Amazon.com
Timetec 32GB KIT(2x16GB) Compatible for Apple DDR4 2666MHz / 2667MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K, Late 2018 Mac Mini (8,1) PC4-21333 /PC4-21300 MAC RAM at Amazon.com