Manufacturer or Batch Number: Actual Item Fully Tested Before Shipping Model: DDR2 SODIMM Capacity: 4GB Frequency: 800 MHz Interface: DDR2 200-pin Compatible With: Laptops Pin Count Reference: - DDR Desktop: 184 pins - DDR Laptop: 200 pins - DDR2 Desktop: 240 pins - DDR2 Laptop: 200 pins - DDR3 Desktop: 240 pins - DDR3 Laptop: 204 pins Important Notes: - Windows XP may recognize approximately 3 GB - Windows 7 32-bit may recognize approximately 2.26–4.5 GB - Windows 7 64-bit may recognize up to 8–16 GB Before purchasing, verify compatibility with your laptop. Common DDR2 module designations: - PC2-4200 = DDR2-533 MHz - PC2-5300 = DDR2-667 MHz (backward compatible with DDR2-533) - PC2-6400 = DDR2-800 MHz (backward compatible with DDR2-667 and DDR2-533) - PC2-8500 = DDR2-1066 MHz Product appearance and color may vary slightly between batches; this does not affect functionality. Color: Green Material: PCB Dimensions: 7 x 3 cm Package Includes: - 1 x RAM module Note: Color representation may vary slightly due to screen settings and lighting conditions. Dimensional tolerance: ±1–3 cm.