OWC 64. OWC 250GB Mercury Electra 3G SSD 2.5' Serial-ATA 7mm Solid State Drive 250 GB OWC 8.0TB Mercury Elite Pro Desktop Storage Solution, 7200RPM eSATA/FW800/FW400/USB3.1 DDR2-667 Fully Buffered DIMM for Apple Mac Pro (Apple MA685G. OWC in-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2012 (DIDIMACHDD12) DDR3-1333 RAM Memory Upgrade Kit for the Compaq HP Probook 6550b (WZ241UTABA) (Genuine A. Apple Mac Pro 2013 models utilize thermal enabled ECC-Registered and ECC non-Registered memory. OWC Memory for Mac Pro 2013 fully meets Apples specifications with special attention to proper thermal specifications. This OWC memory kit is compatible with MacPro 2013. OWC 32GB (2X 16GB) 1866MHz PC3-14900 DDR3 ECC-R SDRAM Memory Upgrade Kit ECC Registered (1866D3R9M32) Compatible with Mac Pro 2013 32GB 2 x 16GB The OWC 1866D3R9M64 is a 64GB memory upgrade kit consisting of 4 x 16.0GB memory. OWC 32GB (4x8GB) PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Upgrade Kit for iMac 32GB (8GB-modules)