Amazon.com: OWC 256GB (2 x 128GB) PC23400 DDR4 ECC-R 2933MHz LRDIMMs Memory Compatible with Mac Pro 2019 and up Models (OWC29D4LR0256) : Everything Else
Apple Silicon Mac Pro Said to Feature Same Design as 2019 Model, No User-Upgradable RAM - MacRumors
Mac Pro, 2019, Xeon, 4TB SSD, 96GB RAM, Radeon Pro W5700X
OWC releases its max-outable Mac Pro 2019 RAM upgrade kits - NotebookCheck.net News
Install and replace memory in your Mac Pro (2019) - Apple Support
Install and replace memory in your Mac Pro (2019) - Apple Support
2019 Mac Pro RAM Upgrade Guide - Save up to $10,600! - YouTube