OWC 64 GB kIt (4X16) ECC Reg DDR3-1333 ECC Reg...

Macintosh 64 GB kIt (4X16) ECC Reg DDR3-1333 ECC Reg DDR3 DIMM 4×16 Kit ECC Registered memory, do not mix. Other existing Apple or 3rd party 1GB, 2GB and 4GB modules are not supported for use with this kit and need to be removed when this kit is addedUse 3 modules for triple channel performanceNOTE: Maximum under OSX is 96 GB. These 16GB modules require that all installed modules be of this same matching part. .