48GB (6 X 8GB) DDR3 PC3-10600R 1333MHz CL9 1.5V 2RX4 240PIN DIMMS. Mac Pro "Eight Core" 2.26 (2009/Nehalem)2.26 GHz Q. Core Xeon E5520 x2. Mac Pro "Eight Core" 2.66 (2009/Nehalem)2.66 GHz Q. Core Xeon X5550 x2.
This product would be ideal for users of Apple Mac Pro 5,1 who require high-speed, capacious memory for their demanding computational needs.