The Apple Mac Pro (4-core Xeon 3500 Series) 3rd Gen. Early 2009 uses DDR3 DIMM memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type DDR3 DIMM
Base Memory
Upgrade Slots 4
Maximum Memory 16GB
Maximum Module Size 4GB
CPU & Chipset ~
Bus Architecture ~
Part Number 814EC7-3
1066MHz 240pin CL7 ECC
In Stock
$139.99
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Part Number 814EC7-3H
1066MHz 240pin CL7 ECC
In Stock
$224.99
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Part Number 814EC7-3
1066MHz 240pin CL7 ECC
In Stock
$139.99
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Part Number 814EC7-3H
1066MHz 240pin CL7 ECC
In Stock
$224.99
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Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
CT953078 12GB Kit of 3 4GB DDR3 PC3-8500 1066MHz ECC DIMM Crucial 814EC7-3