Crucial Mac Pro Systems (Late 2013) 32GB (2 x 16GB) DDR3 1866 (PC3 14900) ECC Registered Memory For Mac Pro Systems Model CT2K16G3R186DM System Specific Memory - Newegg.com
Crucial Ballistix Sport XT 8GB Single DDR3 1866 MT/s (PC3-14900) CL10 @1.5V UDIMM 240-Pin Memory Module Desktop Memory - Newegg.com