8GB KIT (2 x 4GB) for Dell Precision Notebook Series Mobile Workstation M2400 Mobile Workstation M4400 Mobile Workstation M6300. SO-DIMM DDR2 Non-ECC PC2-6400 800MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
A-Tech 8GB Kit (2x4GB) Max RAM for Dell Inspiron 1440, 1545, 1546, 1750, Zino HD 400 - DDR2 800Mhz PC2-6400 SODIMM Max Memory Upgrade at Amazon.com
Dell Precision M4400 Mobile Workstation System Guide | Dell US
Dell Latitude E6500 Precsion M4400 Dual CCFL LCD Back Cover Lid G068P 0G068P CCF
Precision M4400 Service Manual
8GB 2X4GB Memory RAM for Dell Inspiron 1545 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Newegg.com