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The 4GB DDR2 667 MHz FB-DIMM Memory Kit from OWC includes two fully-buffered 4GB modules, for a total of 8 GB. This is a matched set of memory designed for the 8-core Mac Pro (April 2007) and the Mac Pro (August 2006). These are single rank, ECC modules with 5-5-5 timings in a 240-pin DIMM form factor. These modules fully meet Apple's specifications, use qualified Mac Pro heat-spreaders, and are fully compliant with JEDEC specifications.
Compatibility - Mac Pro
MacPro2,1 – Mac Pro (8-core)
MacPro1,1 – Mac Pro (August 2006)
(2.0 GHz, 2.66 GHz, 3.0 GHz)
In the Box
OWC / Other World Computing 4GB DDR2 667 MHz FB-DIMM Memory Kit (2 x 2GB, Mac)