This seems to suggest that you can install it on a 2019 Mac Pro at least: https://support.apple.com/en-us/102742 https://support.apple.com/en-us/102742. $4,859

This seems to suggest that you can install it on a 2019 Mac Pro at least: https://support.apple.com/en-us/102742 https://support.apple.com/en-us/102742. $4,859.99 for 8 128GB LR-DIMMS on amazon: https://www.amazon.com/8x128GB-DDR4-3200-PC4-25600-NEMIX-RAM/dp/B08F2RN2KQ?th=1 https://www.amazon.com/8x128GB-DDR4-3200-PC4-25600-NEMIX-RAM... The new Mac Pro (with the M2 Ultra) uses unified memory, so I guess no more third party upgrades? Looking here: https://everymac.com/actual-maximum-mac-ram/actual-maximum-mac-pro-ram-capacity.html https://everymac.com/actual-maximum-mac-ram/actual-maximum-m... The new Mac Pro is limited to 192GB while the previous Mac Pro can go up to 1.5TB.