The product is a matched pair of 4 x 2GB DDR2 PC2 6400 DIMM memory modules, totaling 8GB of capacity. These modules have a form factor of DIMM, a type of DDR2 SDRAM, with a bus speed of PC2-6400 (DDR2-800). This is ECC 240 Pin memory. Fast and Free USA shipping from the Midwest!
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