Crucial 4GB DDR2 SDRAM Memory Module - CT2KIT25664AC667

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5 out of 5
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Overall Satisfaction
Ease of Use


by Some Customer on 8/27/2008

This 4GB ram is great. I just installed it on my machine that originally had 1GB of ram. And Windows Vista is being nicer to me now. The install process was easy. The hardest part was opening the plastic!

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absolutly worth it!!!

by Chaka on 9/10/2008

nice product and well worth it to upgrade in my 24" iMac. If I order from apple it cost me $400. I always prefer to purchase from because it is reliable online store. a+++

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Product Overview

A small outline dual inline memory module (SODIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). SODIMMs get their name because they are smaller and thinner than regular DIMMs. The gold pins on the bottom of the SODIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a SODIMM are not connected.

200-pin DDR2 SODIMMs are used to provide DDR2 SDRAM memory for notebook computers. 200-pin DDR2 SODIMMs are available in PC2-4200 DDR2 SDRAM. To use DDR2 memory, your system motherboard must have 200-pin SODIMM slots and a DDR2-enabled chipset. A DDR2 SODIMM will not fit into a standard SDRAM SODIMM socket.

The number of black components on a 200-pin DDR2 SODIMM can vary, but it always has 100 pins on the front and 100 pins on the back, for a total of 200. 200-pin DDR2 SODIMMs are approximately 2.625 inches long and 1.25 inches high, though the heights can vary. Like 200-pin DDR SODIMMs, 200-pin DDR2 SODIMMs have one small notch within the row of pins; however, the notch on the 200-pin DDR2 SODIMMs is in a slightly different place, which means that the 200-pin DDR and DDR2 SODIMMs cannot be used interchangeably.

  • Crucial® is the only brand of memory upgrade available directly from a DRAM manufacturer, Micron. Crucial memory is the same high-quality memory that the world's largest computer manufacturers install in the systems they sell, and it's tested to meet stringent industry specifications.
  • Easily install it yourself in about 15 minutes.
  • A cost-effective way to increase system performance and productivity.
  • Crucial memory comes with a money-back compatibility guarantee.
  • Crucial memory comes with a limited lifetime warranty.
  • Specifications

    Manufacturer Crucial
    Mfg Part# CT2KIT25664AC667
    SKU 204465745
    UPC 649528733047
    UPC 14 00649528733047
    Product Guide Click here to verify compatibility with your system
    Product Guide For more Crucial deals, click here
    Tech Specs
    Product Type RAM Module
    Brand Name Crucial
    Manufacturer Part Number 112805
    Product Name 4GB DDR2 SDRAM Memory Module
    Manufacturer Website Address
    Manufacturer Crucial Technology
    Form Factor 200-pin SoDIMM
    Error Checking Non-ECC
    Memory Technology DDR2 SDRAM
    Number of Modules 2 x 2 GB
    Memory Speed 667 MHz
    Memory Standard DDR2-667/PC2-5300
    Memory Size 4 GB
    Standard Warranty Lifetime Limited

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