Apple OEM MX1K2G/A 768GB (12×64GB) DDR4-2933MHz PC4-23400 R-DIMM ECC Memory Kit — Compatible with 2019 Mac Pro (A1991)

OEM Apple memory kit, Model No. MX1K2G/A. Total capacity 768GB delivered as twelve 64GB DDR4 modules (packed in six separate packages). Modules are 288‑pin R-DIMM with ECC, running at DDR4 2933MHz (PC4-23400). Designed for compatibility with the 2019 Mac Pro (A1991) as a direct memory upgrade.