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Best Buy: CMS 4GB (2x2GB) Memory RAM Compatible with Dell Latitude E6400, E6400 ATG, E6400 XFR CM256646400SO0204
![Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com](https://i5.walmartimages.com/asr/8e7a9585-f24f-4aab-803d-d7770d23ebe3_1.484db15741ca7a94caa2609b8a5bf5e4.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com
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8GB 2X4GB Memory RAM for Dell Latitude E6400 XFR 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade System Specific Memory - Newegg.com
![parts-quick 4GB Memory for Dell Latitude E6400 (XFR) (32-bit) DDR2 PC2-6400 800MHz Laptop SODIMM Compatible RAM at Amazon.com parts-quick 4GB Memory for Dell Latitude E6400 (XFR) (32-bit) DDR2 PC2-6400 800MHz Laptop SODIMM Compatible RAM at Amazon.com](https://m.media-amazon.com/images/I/51zW-GDr4DL._AC_UF894,1000_QL80_.jpg)
parts-quick 4GB Memory for Dell Latitude E6400 (XFR) (32-bit) DDR2 PC2-6400 800MHz Laptop SODIMM Compatible RAM at Amazon.com
![Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com](https://i5.walmartimages.com/asr/3688caf7-3bff-415d-bd18-b0d7fd6565f2_1.1bf2681de2e53ad1654b062a6aa12f93.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com
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EMMCRAM 8GB (2 x 4GB) PC2-6400 DDR2-800 200PIN SoDIMM Laptop RAM Non-ECC Unbuffered Notebook Memory for Dell E6400,E6500, Inspiron 1545, M4400,E5500 at Amazon.com
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8GB 2X4GB Memory RAM for Dell Latitude E6400 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Walmart.com
![Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com](https://i5.walmartimages.com/asr/24ce39ed-0325-43fe-a3ee-557ad42b37f5_1.3caaa6391f511a2c97ff68b9c07995f2.png?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Used: Dell Latitude E6400 Laptop - Core 2 Duo, 2gb RAM, 80gb HDD, WIFI, DVD-ROM, Windows 7 Professional x64 - Walmart.com
![Dell Latitude E6400 Laptop - Core 2 Duo 2.26GHz - 500GB HDD - 4GB RAM - Windows 7 Professional 64-Bit - WiFi-USED with FREE 3 Year Warranty provided by CPS. - Walmart.com Dell Latitude E6400 Laptop - Core 2 Duo 2.26GHz - 500GB HDD - 4GB RAM - Windows 7 Professional 64-Bit - WiFi-USED with FREE 3 Year Warranty provided by CPS. - Walmart.com](https://i5.walmartimages.com/asr/77b2fadd-6d3b-4059-a753-c99c0373e5ef_1.573615464b0897b00355e8cf8917e73f.png?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Dell Latitude E6400 Laptop - Core 2 Duo 2.26GHz - 500GB HDD - 4GB RAM - Windows 7 Professional 64-Bit - WiFi-USED with FREE 3 Year Warranty provided by CPS. - Walmart.com
![8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for The Dell Latitude E6400 (Genuine A-Tech Brand) at Amazon.com 8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for The Dell Latitude E6400 (Genuine A-Tech Brand) at Amazon.com](https://m.media-amazon.com/images/I/71Ena1fW4NL._AC_UF894,1000_QL80_.jpg)
8GB [2x4GB] DDR2-800 (PC2-6400) RAM Memory Upgrade Kit for The Dell Latitude E6400 (Genuine A-Tech Brand) at Amazon.com
![CMS 4GB (1X4GB) DDR2 6400 800MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude E6400, E6400 Atg, E6400 Xfr - A42 - Walmart.com CMS 4GB (1X4GB) DDR2 6400 800MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude E6400, E6400 Atg, E6400 Xfr - A42 - Walmart.com](https://i5.walmartimages.com/asr/cf2bbd7b-e8ee-4a30-901d-bcc4246517f9_1.bd9d319ee1bebb8369a7785f734b7f1f.jpeg)