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
P018G New Dell Precision M4400 Intel Motherboard+Audio USB Board LA-4501P N533H 614486647040 | eBay
8GB 2X4GB Memory RAM for Dell Inspiron 1545 200pin 800MHz PC2-6400 DDR2 SO-DIMM Black Diamond Memory Module Upgrade - Newegg.com