Actual Items manufacturer or batch number may vary Fully tested before shipping Model: DDR2 SODIMM Capacity: 4GB Frequency: 800MHz Function: DDR2 200-pin Compatible with laptops Memory pin count: DDR for Desktop – 184 pins DDR for Laptop – 200 pins DDR2 for Desktop – 240 pins DDR2 for Laptop – 200 pins DDR3 for Desktop – 240 pins DDR3 for Laptop – 204 pins Please note: Maximum recognized memory depends on the operating system: - Windows XP: approximately 3GB - Windows 7 32-bit: approximately 2.26–4.5GB - Windows 7 64-bit: supports 8–16GB Before purchasing, please verify compatibility with your laptop model. Common DDR2 designations: 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 Appearance and color may vary by batch; this does not affect performance Color: Green Material: PCB Dimensions: 7 x 3 cm Package Contents: 1 x RAM module Note: Light reflection and screen settings may cause slight color differences between the image and the actual item. Measurement tolerance: ±1–3 cm.