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The 4GB 240-Pin DIMM DDR3 PC3-12800 Memory Module from Crucial is the current generation of memory with an improved architecture that allows data transmission more quickly. The module is used in DDR3 memory for desktop computers. Each memory module provides a 64-bit data path (72-bit for ECC, registered or fully buffered modules).
Note:*To use DDR3 memory, your system motherboard must have 240-pin DIMM slots and a DDR3-enabled chipset. This is because a DDR3 SDRAM DIMM will not fit into a standard DDR2 DIMM socket or a DDR DIMM socket.