The 4GB (2x2GB) FB-DIMM Mac Pro Memory Upgrade Kit from Crucial Technology can help to greatly increase the speed of your desktop computer. Increasing your computer's RAM enables more applications to run simultaneously without system glitches. You can breathe new life into your old computer by upgrading its memory.
Upgrade kit is ideal for systems that require installation of multiple memory chips
Synchronous Dynamic RAM (SDRAM) delivers superior performance