OWC 32GB (2X 16GB) 1866MHz PC3-14900 DDR3 ECC-R SDRAM Memory Upgrade Kit, ECC Registered Compatible with Mac Pro 2013 (OWC1866D3R9M32)

32.0GB (2x 16GB) Memory Matched Set PC3-14900 1866MHz DDR3 ECC-R SDRAM Modules Compatible with Mac Pro Late 2013Memory Upgrade Kit-Matched Set-ECC RegisteredOWC ECC Registered Memory Upgrade Kit-ECC Registered and non-Registered memory may not be mixed. Ex