4GB DDR2 Laptop RAM 800MHz PC2-6400 SODIMM 200-Pin Memory Module for AMD and Intel Laptops Model: DDR2 SODIMM Capacity: 4GB Frequency: 800MHz (PC2-6400) Form Factor: SODIMM 200-pin Type: DDR2 Application: Laptop Compatibility: Designed for laptops with compatible chipsets including GL40, GM45, GS45, PM45, PM65; supports systems with PM945 or 965 chipsets Note on Operating System Recognition: - Windows XP may recognize up to approximately 3GB - Windows 7 32-bit may recognize between 2.26GB and 4.5GB - Windows 7 64-bit may recognize between 8GB and 16GB Memory Speed Compatibility: - PC2-4200 = DDR2 533MHz - PC2-5300 = DDR2 667MHz (compatible with DDR2 533MHz) - PC2-6400 = DDR2 800MHz (compatible with DDR2 667MHz and DDR2 533MHz) - PC2-8500 = DDR2 1066MHz Please verify your laptop model and motherboard compatibility before purchase. Appearance and color may vary by manufacturing batch; random color shipment—no specific color requests accepted. Material: PCB Dimensions: 7 x 3 cm (approximate) Package Includes: 1 x 4GB DDR2 SODIMM RAM Module Note: Light reflection and display settings may cause slight variations in color between the product image and actual item. Measurement tolerance: +/- 1-3 cm. Only the items listed are included.