Capacity 256GB (8x32GB) Form Factor 288-PIN DIMM. Speed PC4-25600 3200MHz CL22 Backward Compatibility ALSO COMPATIBLE WITH 2933MHz, 2666MHz, 2400MHz, AND 2133MHz. It will NOT be compatible with standard desktop computers.
SK hynix 256GB (8x32GB) DDR4 ECC Registered RDIMM PC4-3200AA 288-Pin
256GB 8x32GB 2Rx4 PC4-2666V-R HP ProLiant DL360 G10 DL380 G10 Memory RAM
OWC 32GB (2x16GB) DDR4 2666MHz 2Rx8 ECC Unbuffered SODIMM 260pin Memory RAM
OWC 16GB (2x8GB) DDR4 2400MHz SO-DIMM Memory Modules. *from 2017 iMac
OEM Apple 256GB(2x128GB) DDR4 2933MHz Memory Module Kit for 2019 Mac Pro Upgrade
New Genuine Apple 256GB (2x128GB) DDR4 2933MHz RAM Memory Kit for Mac Pro 2019