Apple Mac Pro 3.33GHz Six Core Mid 2012 compatible Black Diamond memory 8GB 2X4GB DDR3 ECC UDIMM 1333MHz. Compatible computer model: Apple Mac Pro 3.33GHz Six Core Mid 2012, MD771LL/A, Z0M4 12-Cores Two 2.93GHz 6-Core Intel Xeon, 6-Core Mid 2010, Z0LG 12-Cores Two 2.66GHz 6-Core Intel Xeon, 12-Core Mid 2010, MD87810 3.0GHz 8-Core Xeon E5 2013, Mid 2012 - Dual Processor Systems, Z0LG 12-Cores Two 2.93GHz 6-Core Intel Xeon, ME253LL/A 3.7GHz Quad-Core Xeon E5 2013, 2.7GHz 12-Core Xeon E5 2013, MD878LL/A 3.5GHz 6-Core Xeon E5 processor 2013, Z0M4 12-Cores Two 2.66GHz 6-Core Intel Xeon, MC250LL/A 2.8GHz Quad-Core Intel Xeon, 12-Core Mid 2012, 4-Core Mid 2010. Black Diamond Memory offers the most extensive line of memory solutions today. With our decades of experience specializing in memory, Black Diamond Memory is a proven manufacturer to the semiconductor industry. Our great products combined with our world class service and support have helped us to where we are today. When you have an Black Diamond memory chip, you can count on it being the best available memory for your system. Our system specific Branded Memory line delivers in performance, and is designed to be guaranteed in compatibility with your system. Each of our memory chips come with a lifetime warranty for your peace of mind. Use our Upgrade Configurator to easily find the correct memory module for your system. Please keep in mind that this memory will ONLY work on the models listed above. 15% Restocking fee will apply for non-defective items.